CVE-2026-51994
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
n/a n/a
CVSS
9.1CriticalExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.35%Chance of exploitation activity in the next 30 days, higher than 27% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Affected versions 1
- n/aaffected: n/aCVE List
References 4
- github.com/geelen/mcp-remote/security/advisoriesAdvisoryvia CVE List
- github.com/playb0t/mcp-remote-oauth-security#readmeAdvisoryvia CVE List
- github.com/playb0t/mcp-remote-oauth-security/blob/v1.0.1/advisories/F-01-resource-metadata-ssrf.mdAdvisoryvia CVE List
- github.com/geelen/mcp-remoteReferencevia CVE List