CVE-2026-44427
MCP Registry has open redirect via protocol-relative path in trailing-slash middleware in github.com/modelcontextprotocol/registry
EPSS 0.41%
Description
MCP Registry has open redirect via protocol-relative path in trailing-slash middleware in github.com/modelcontextprotocol/registry
How to fix CVE-2026-44427
To remediate CVE-2026-44427, upgrade the affected package to a fixed version below.
- Go/github.com/modelcontextprotocol/registry—upgrade to 1.7.5 or later
- Go/github.com/modelcontextprotocol/registry—upgrade to 1.7.5 or later
Is CVE-2026-44427 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 1.1.0, < 1.7.5
- >= 1.1.0, < 1.7.5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P |