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    "adp": [
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        "metrics": [
          {
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              "content": {
                "id": "CVE-2026-9831",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-01T13:52:52.575235Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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        "providerMetadata": {
          "dateUpdated": "2026-06-01T13:53:05.140Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "SaaS (Cloud Hosted)"
          ],
          "product": "Extreme Platform ONE",
          "vendor": "Extreme Networks",
          "versions": [
            {
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              "status": "affected",
              "version": "0",
              "versionType": "custom"
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            {
              "status": "unaffected",
              "version": "25.10.0-104",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Sebastian Koller of Iteas IT Services GmbH (Austria) for responsible discovery and disclosure of this vulnerability."
        },
        {
          "lang": "en",
          "type": "reporter",
          "value": "Sebastian Koller of Iteas IT Services GmbH (Austria) for responsible coordination and providing detailed evidence supporting root cause identification."
        }
      ],
      "datePublic": "2026-05-29T21:09:00.000Z",
      "descriptions": [
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          "lang": "en",
          "supportingMedia": [
            {
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              "type": "text/html",
              "value": "A race condition in the shared Extreme Platform\nONE IAM Gateway API-key authentication path could, under specific\nhigh-concurrency traffic conditions, intermittently allow requests\nauthenticated with an Extreme Platform ONE /IAM-issued API key to receive\nresponse data for another tenant. The issue was observed through ExtremeCloud\nIQ/XIQ API endpoints and validated against both XIQ/XAPI and Extreme Platform ONE\n/Common Services API paths. XIQ-native tokens and standard OAuth/Bearer JWT\nauthentication were not affected."
            }
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        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-74",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-74: Manipulating State"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-362",
              "description": "CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-488",
              "description": "CWE-488 Exposure of data element to wrong session",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-29T21:19:17.118Z",
        "orgId": "1c053176-eef3-4d6a-ae0b-24728c86587b",
        "shortName": "ExtremeNetworks"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://community.extremenetworks.com/t5/security-advisories-formerly/sa-2026-048-extremecloud-iq-cross-tenant-data-exposure-via/ba-p/121851"
        }
      ],
      "source": {
        "advisory": "SA-2026-048",
        "discovery": "EXTERNAL"
      },
      "title": "ExtremeCloud IQ Cross Tenant Data Exposure via Extreme Platform One Authentication Race Condition",
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  "cveMetadata": {
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    "assignerShortName": "ExtremeNetworks",
    "cveId": "CVE-2026-9831",
    "datePublished": "2026-05-29T21:19:17.118Z",
    "dateReserved": "2026-05-28T12:21:45.520Z",
    "dateUpdated": "2026-06-01T13:53:05.140Z",
    "state": "PUBLISHED"
  },
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}