CVE-2026-44427

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

No CVSS.

References

Link	Resource
https://github.com/modelcontextprotocol/registry/security/advisories/GHSA-v8vw-gw5j-w7m6
https://github.com/modelcontextprotocol/registry/security/advisories/GHSA-v8vw-gw5j-w7m6

Configurations

No configuration.

History

15 May 2026, 15:16

Type	Values Removed	Values Added
References	~~() https://github.com/modelcontextprotocol/registry/security/advisories/GHSA-v8vw-gw5j-w7m6 -~~	() https://github.com/modelcontextprotocol/registry/security/advisories/GHSA-v8vw-gw5j-w7m6 -

14 May 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-14 22:16

Updated : 2026-05-15 15:16

NVD link : CVE-2026-44427

Mitre link : CVE-2026-44427

CVE.ORG link : CVE-2026-44427

JSON object : View

Products Affected

No product.

CWE

CWE-601

URL Redirection to Untrusted Site ('Open Redirect')

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