CVE-2026-53709

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Source

https://cve.org/CVERecord?id=CVE-2026-53709

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53709.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-53709

Aliases

GHSA-m8rv-5m6m-32ff

Published

2026-10-13T14:32:12Z

Modified

2026-10-14T02:48:34Z

Severity

9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

MCP Context Forge: Hardcoded default JWT_SECRET_KEY shipped in source and .env.example enables pre-authentication platform admin token forgery

Details

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.

Database specific

{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-1188",
        "CWE-287",
        "CWE-321",
        "CWE-798"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53709.json"
}

References

Affected packages

Git / github.com/ibm/mcp-context-forge

Affected ranges

Type

GIT

Repo

https://github.com/ibm/mcp-context-forge

Events

Introduced

Fixed

e0967e65cd381374682751da630e2cc2fb3a9c34

Database specific

Show details

{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "1.0.2"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

v1.*

v1.0.0

v1.0.0-RC-3

v1.0.0-RC2

v1.0.1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53709.json"