VULNERABILITY INTELLIGENCE
CVE-2026-44427
EPSS probability0.47%
CISA KEVNot currently listed
Published2026-05-14
Last modified2026-10-26
Description
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.
Weakness classification
- security-advisories@github.com: CWE-601