CVEvulnerability

CVE-2026-53709

9.8 CRITICAL Published 2026-10-13 Modified 2026-10-16 Official page ↗
Status
Deferred
Published
2026-10-13
Last modified
2026-10-16
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-1188, CWE-287, CWE-321, CWE-798

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.

Related

Weakness · CWE (4)

  • CWE-1188 Initialization of a Resource with an Insecure Default weakness
  • CWE-287 Improper Authentication weakness
  • CWE-321 Use of Hard-coded Cryptographic Key weakness
  • CWE-798 Use of Hard-coded Credentials weakness

References