cve.bz

CVE-2026-44427

0.0 infoEPSS 0.4%

The MCP Registry provides MCP clients with a list of MCP servers, like an app store for MCP servers. From 1.1.0 to 1.7.4, the TrailingSlashMiddleware in internal/api/server.go is vulnerable to an open redirect attack. An attacker can craft a URL with a protocol-relative path (e.g., //evil.com/) that, after trailing slash removal, results in a Location header of //evil.com — which browsers interpret as an absolute URL to an external domain. This vulnerability is fixed in 1.7.5.

CVSS 4.0
0.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.4% chance of exploitation in the next 30 days; higher than 34% of CVEs (scores of 2026-10-25)
CWE
CWE-601
Published
Modified
Record from
the NVD, synced

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-v8vw-gw5j-w7m6Gogithub.com/modelcontextprotocol/registry>=1.1.0 <1.7.51.7.5
GO-2026-5658Gogithub.com/modelcontextprotocol/registry>=1.1.0 <1.7.51.7.5

References

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