{"id":"CVE-2026-53709","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-53709","generatedAt":"2026-10-28T01:39:27.200Z","title":"A remote unauthenticated attacker can therefore mint accepted administrator tokens without a database account.","description":"MCP Context Forge is an MCP gateway and administrative platform. Prior to 1.0.2, mcpgateway/config.py and .env.example ship a known JWT_SECRET_KEY, while verify_jwt_token() accepts HS256 tokens signed with that key and get_current_user() creates a platform administrator when the token subject matches PLATFORM_ADMIN_EMAIL and REQUIRE_USER_IN_DB is false. A remote unauthenticated attacker can therefore mint accepted administrator tokens without a database account. While the vulnerable signing key remains configured and the platform-admin bootstrap remains enabled, forged access survives password rotation, account deletion, and session revocation, allowing administrative disclosure, modification, and service disruption. This issue is fixed in version 1.0.2.","published":"2026-10-13T15:17:45.000Z","lastModified":"2026-10-16T22:17:24.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-287","CWE-321","CWE-798","CWE-1188"],"affected":[],"epss":{"score":0.00603,"percentile":0.48585,"date":"2026-10-26","history":[{"date":"2026-10-14","score":0.00452,"percentile":0.37659}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.60%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-13T15:17:45.000Z","detail":{"score":"9.8","severity":"CRITICAL","publishedAt":"2026-10-13T15:17:44.873Z"},"summary":"New CVE, critical severity (CVSS 9.8)."}],"references":[{"url":"https://github.com/IBM/mcp-context-forge/commit/2af690f894b6e35f5f21190fdab1505f023a5272","source":"security-advisories@github.com"},{"url":"https://github.com/IBM/mcp-context-forge/releases/tag/v1.0.2","source":"security-advisories@github.com"},{"url":"https://github.com/IBM/mcp-context-forge/security/advisories/GHSA-m8rv-5m6m-32ff","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53709","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}