{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "7.5.2"
              },
              {
                "introduced": "7.6.0"
              },
              {
                "fixed": "7.6.5"
              },
              {
                "introduced": "8.0.0"
              },
              {
                "fixed": "8.0.2"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "introduced": "e3e6336fafaddebc8c7afbc12bbf08566a80b853"
            },
            {
              "introduced": "7e69bb26a137a38bb420c3c3238888cb6c411227"
            },
            {
              "fixed": "b4d1bf8917a8059ffb9eb32f11af6bc1473a7782"
            },
            {
              "fixed": "b501005d1d9961605e9c7b5333d17c8ca14579f1"
            },
            {
              "fixed": "8ee9e914cec88ee18e7677f41a84db7c8eeda8fb"
            },
            {
              "fixed": "2100db76af3473f13e6fb40096cf17a9c2b741a1"
            },
            {
              "fixed": "d45f99df924c0d24747b3e45e46fcda7dcd3c1c1"
            },
            {
              "fixed": "d862562a5ab8f2d1e40f6519c64cf0b4fdaf806d"
            }
          ],
          "repo": "https://github.com/unleash/unleash",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-5vf6-jrqr-78fj"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63004.json"
  },
  "details": "Unleash is an open-source feature management platform. Prior to 7.5.2, 7.6.5, and 8.0.2, the addon and integration subsystem passes the operator-controlled parameters.url value from src/lib/addons/webhook.ts and the Slack, Microsoft Teams, Datadog, and New Relic integrations to Addon.fetchRetry in src/lib/addons/addon.ts without restricting loopback, link-local, private, or cloud metadata addresses. An authenticated actor with the root CREATE_ADDON or UPDATE_ADDON permission can cause the server to send requests from inside its network boundary, use integration event status as a blind probing oracle, forward Authorization, customHeaders, or DD-API-KEY values to an attacker-observed host, and deliver the feature-event JSON body to internal services. This issue is fixed in versions 7.5.2, 7.6.5, and 8.0.2.",
  "id": "CVE-2026-63004",
  "modified": "2026-09-19T03:30:33.177204858Z",
  "published": "2026-08-21T18:05:20.458Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Unleash/unleash/releases/tag/v7.5.2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Unleash/unleash/releases/tag/v7.6.5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Unleash/unleash/releases/tag/v8.0.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63004.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/Unleash/unleash/security/advisories/GHSA-5vf6-jrqr-78fj"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63004"
    },
    {
      "type": "FIX",
      "url": "https://github.com/Unleash/unleash/commit/2100db76af3473f13e6fb40096cf17a9c2b741a1"
    },
    {
      "type": "FIX",
      "url": "https://github.com/Unleash/unleash/commit/d45f99df924c0d24747b3e45e46fcda7dcd3c1c1"
    },
    {
      "type": "FIX",
      "url": "https://github.com/Unleash/unleash/commit/d862562a5ab8f2d1e40f6519c64cf0b4fdaf806d"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Unleash: Addon webhook URL is dialed server-side with no internal-address filtering, enabling SSRF to internal services / cloud metadata and exfiltration of configured request headers"
}