CVE-2026-51994

CVSS 9.1 (critical) · published 2026-09-24

mcp-remote versions 0.1.32 through 0.1.38 are vulnerable to Server-Side Request Forgery (SSRF) via the resource_metadata URL extracted from a remote MCP server's WWW-Authenticate header

Weakness: CWE-918

Source: NVD CVE-2026-51994

References

• https://github.com/geelen/mcp-remote
• https://github.com/geelen/mcp-remote/security/advisories
• https://github.com/playb0t/mcp-remote-oauth-security#readme
• https://github.com/playb0t/mcp-remote-oauth-security/blob/v1.0.1/advisories/F-01-resource-metadata-ssrf.md

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