CVE-2026-53709

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{"affected": [{"affectedData": [{"product": "mcp-context-forge", "vendor": "IBM", "versions": [{"status": "affected", "version": "< 1.0.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-53709", "lastModified": "2026-10-16T22:17:23.737", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-53709", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T21:59:27.134623Z", "version": "2.0.3"}}]}, "published": "2026-10-13T15:17:44.873", "references": [{"source": "security-advisories@github.com", "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"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}, {"lang": "en", "value": "CWE-321"}, {"lang": "en", "value": "CWE-798"}, {"lang": "en", "value": "CWE-1188"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"created": "2026-10-13T17:45:17.072348+00:00", "updated": "2026-10-13T17:45:17.072355+00:00", "vendors": []}