Vulnerability-Lookup

PYSEC-2026-290

Vulnerability from pysec - Published: 2026-06-29 11:50 - Updated: 2026-07-02 12:46

Details

Missing Authentication in the registration feature of Lablup's BackendAI allows arbitrary users to create user accounts that can access private data even when registration is disabled.

Severity ?

9.8 (Critical)


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

Impacted products

Name	purl
backend-ai	pkg:pypi/backend-ai

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "backend-ai",
        "purl": "pkg:pypi/backend-ai"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "25.15.6"
            },
            {
              "introduced": "25.16.0rc1"
            },
            {
              "fixed": "25.19.0rc1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.0",
        "1.0.1",
        "1.0.2",
        "1.1.0",
        "1.2.0",
        "1.3.0",
        "1.4.0",
        "18.12.0",
        "19.3.0",
        "19.3.0a1",
        "19.9.0",
        "20.3.0",
        "20.3.1",
        "20.9.0",
        "20.9.0a1.dev0",
        "21.3.0",
        "22.3.0"
      ]
    }
  ],
  "aliases": [
    "CVE-2025-49652",
    "GHSA-ww28-4m4v-cq4j"
  ],
  "details": "Missing Authentication in the registration feature of Lablup\u0027s BackendAI allows arbitrary users to create user accounts that can access private data even when registration is disabled.",
  "id": "PYSEC-2026-290",
  "modified": "2026-07-02T12:46:26.496828Z",
  "published": "2026-06-29T11:50:38.333670Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49652"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lablup/backend.ai/commit/37fc8f70f9bad2dd01fe2e288f9006e96f9914ed"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lablup/backend.ai/commit/b6d3ddd9e285a7ce59722a37585b9298681eb82f"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lablup/backend.ai/commit/d7704f506e319acff205d91bfca6e2ca92939983"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/lablup/backend.ai"
    },
    {
      "type": "WEB",
      "url": "https://hiddenlayer.com/sai_security_advisor/2025-05-backendai-49653"
    },
    {
      "type": "WEB",
      "url": "https://hiddenlayer.com/sai_security_advisor/2025-06-backendai"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/backend-ai"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-ww28-4m4v-cq4j"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "BackendAI Missing Authentication for Critical Function"
}

CVE-2025-49652 (GCVE-0-2025-49652)

Vulnerability from cvelistv5 – Published: 2025-06-09 17:26 – Updated: 2025-06-11 12:12

Title

Improper access control allows arbitrary account creation

Summary

Missing Authentication in the registration feature of Lablup's BackendAI allows arbitrary users to create user accounts that can access private data even when registration is disabled.

Severity ?

9.8 (Critical)


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

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

HiddenLayer

References

URL

Tags

https://hiddenlayer.com/sai_security_advisor/2025…

Impacted products

	Vendor	Product	Version
	Lablup	BackendAI	Affected: *

Credits

Esteban Tonglet

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-49652",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-06-09T18:51:21.168801Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-06-09T18:51:32.571Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "BackendAI",
          "repo": "https://github.com/lablup/backend.ai",
          "vendor": "Lablup",
          "versions": [
            {
              "status": "affected",
              "version": "*"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Esteban Tonglet"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Missing Authentication in the registration feature of Lablup\u0027s BackendAI allows arbitrary users to create user accounts that can access private data even when registration is disabled."
            }
          ],
          "value": "Missing Authentication in the registration feature of Lablup\u0027s BackendAI allows arbitrary users to create user accounts that can access private data even when registration is disabled."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-115",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-115 Authentication Bypass"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-306",
              "description": "CWE-306 Missing Authentication for Critical Function",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-11T12:12:18.105Z",
        "orgId": "6f8de1f0-f67e-45a6-b68f-98777fdb759c",
        "shortName": "HiddenLayer"
      },
      "references": [
        {
          "url": "https://hiddenlayer.com/sai_security_advisor/2025-06-backendai/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Improper access control allows arbitrary account creation",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6f8de1f0-f67e-45a6-b68f-98777fdb759c",
    "assignerShortName": "HiddenLayer",
    "cveId": "CVE-2025-49652",
    "datePublished": "2025-06-09T17:26:20.835Z",
    "dateReserved": "2025-06-09T13:58:25.617Z",
    "dateUpdated": "2025-06-11T12:12:18.105Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-WW28-4M4V-CQ4J

Vulnerability from github – Published: 2025-06-09 18:32 – Updated: 2026-01-20 18:50

Summary

BackendAI Missing Authentication for Critical Function

Details

Missing Authentication in the registration feature of Lablup's BackendAI allows arbitrary users to create user accounts that can access private data even when registration is disabled.

Severity ?

9.8 (Critical)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "backend.ai"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "25.15.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "backend.ai"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "25.16.0rc1"
            },
            {
              "fixed": "25.19.0rc1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-49652"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-306"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-06-11T17:37:45Z",
    "nvd_published_at": "2025-06-09T18:15:26Z",
    "severity": "CRITICAL"
  },
  "details": "Missing Authentication in the registration feature of Lablup\u0027s BackendAI allows arbitrary users to create user accounts that can access private data even when registration is disabled.",
  "id": "GHSA-ww28-4m4v-cq4j",
  "modified": "2026-01-20T18:50:59Z",
  "published": "2025-06-09T18:32:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49652"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lablup/backend.ai/commit/37fc8f70f9bad2dd01fe2e288f9006e96f9914ed"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lablup/backend.ai/commit/b6d3ddd9e285a7ce59722a37585b9298681eb82f"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lablup/backend.ai/commit/d7704f506e319acff205d91bfca6e2ca92939983"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/lablup/backend.ai"
    },
    {
      "type": "WEB",
      "url": "https://hiddenlayer.com/sai_security_advisor/2025-05-backendai-49653"
    },
    {
      "type": "WEB",
      "url": "https://hiddenlayer.com/sai_security_advisor/2025-06-backendai"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "BackendAI Missing Authentication for Critical Function"
}

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

PYSEC-2026-290

CVE-2025-49652 (GCVE-0-2025-49652)

GHSA-WW28-4M4V-CQ4J

Tags

Sightings

Nomenclature