{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0.6.0"
              },
              {
                "fixed": "0.7.2"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "9487a7521c94b14973dcf67efb69faae5c8001e9"
            },
            {
              "fixed": "65f3107f887648e23f3bf1a7c9ecc397d958c1ad"
            }
          ],
          "repo": "https://github.com/forgekeep/nebula-mesh",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-7rx3-5wx3-5v76"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-862",
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63464.json"
  },
  "details": "nebula-mesh is a self-hosted control plane for Slack Nebula mesh VPN. From version 0.6.0 to before version 0.7.2, non-admin operators (role user) can set allow_private: true on their own managed webhook subscription (POST/PATCH /api/v1/webhook-subscriptions). No admin check exists on this field. At delivery time, allow_private switches the dispatcher to an unguarded HTTP client, bypassing the private/loopback/link-local SSRF guard — letting a low-privilege operator make the server request internal addresses. This issue has been patched in version 0.7.2.",
  "id": "CVE-2026-63464",
  "modified": "2026-09-06T03:30:55.455020102Z",
  "published": "2026-09-04T19:44:10.117Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/forgekeep/nebula-mesh/releases/tag/v0.7.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63464.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-7rx3-5wx3-5v76"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63464"
    },
    {
      "type": "FIX",
      "url": "https://github.com/forgekeep/nebula-mesh/commit/f3c54530e388dd21763e548923426e60a8e93ff0"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Nebula-mesh allows non-admin operators to disable webhook SSRF protection via `allow_private`"
}