{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-71424",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-18T17:28:35.060950Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-18T17:47:10.013Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "onyx",
          "vendor": "onyx-dot-app",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.1.10"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.2.0, \u003c 3.2.14"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.3.0-beta.0, \u003c 4.0.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Onyx is an open-source AI platform. Prior to 3.1.10, 3.2.14, and 4.0.0, Onyx\u0027s GET /api/mcp/servers and GET /api/mcp/servers/persona/{persona_id} endpoints expose another user\u0027s OAuth Authorization header because OnyxTokenStorage.set_tokens and OnyxTokenStorage.set_client_info in backend/onyx/server/features/mcp/api.py copy per-user tokens into a shared admin MCPConnectionConfig row and _db_mcp_server_to_api_mcp_server returns that row through auth_template.headers to any BASIC_ACCESS user. This issue is fixed in versions 3.1.10, 3.2.14, and 4.0.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 9.6,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863: Incorrect Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T21:28:32.814Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/onyx-dot-app/onyx/security/advisories/GHSA-q62f-rv3h-f822",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/onyx-dot-app/onyx/security/advisories/GHSA-q62f-rv3h-f822"
        },
        {
          "name": "https://github.com/onyx-dot-app/onyx/pull/11238",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/onyx-dot-app/onyx/pull/11238"
        },
        {
          "name": "https://github.com/onyx-dot-app/onyx/pull/11242",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/onyx-dot-app/onyx/pull/11242"
        },
        {
          "name": "https://github.com/onyx-dot-app/onyx/pull/11243",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/onyx-dot-app/onyx/pull/11243"
        },
        {
          "name": "https://github.com/onyx-dot-app/onyx/commit/3f3d79d1a7722fdc84a1c61c8aa830d890017e9e",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/onyx-dot-app/onyx/commit/3f3d79d1a7722fdc84a1c61c8aa830d890017e9e"
        },
        {
          "name": "https://github.com/onyx-dot-app/onyx/commit/4001cedd0a8968723bfe95dd188914ed56777910",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/onyx-dot-app/onyx/commit/4001cedd0a8968723bfe95dd188914ed56777910"
        },
        {
          "name": "https://github.com/onyx-dot-app/onyx/commit/b103937888fd5008067c2bb6eb6e5424576394f2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/onyx-dot-app/onyx/commit/b103937888fd5008067c2bb6eb6e5424576394f2"
        },
        {
          "name": "https://github.com/onyx-dot-app/onyx/releases/tag/v4.0.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/onyx-dot-app/onyx/releases/tag/v4.0.0"
        }
      ],
      "source": {
        "advisory": "GHSA-q62f-rv3h-f822",
        "discovery": "UNKNOWN"
      },
      "title": "Onyx: Cross-user OAuth-token leak via /api/mcp/servers* for per-user MCP servers"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-71424",
    "datePublished": "2026-08-17T21:28:32.814Z",
    "dateReserved": "2026-08-06T16:28:51.182Z",
    "dateUpdated": "2026-08-18T17:47:10.013Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}