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GO-2026-5637
MCP Registry vulnerable to stored XSS in catalogue UI via attribute-quote breakout in publisher-controlled `websiteUrl` in github.com/modelcontextprotocol/registry
Quick fix
GO-2026-5637 — github.com/modelcontextprotocol/registry: upgrade to the fixed version with the command below.
go get github.com/modelcontextprotocol/registry@v1.7.7Details
MCP Registry vulnerable to stored XSS in catalogue UI via attribute-quote breakout in publisher-controlled `websiteUrl` in github.com/modelcontextprotocol/registry
Are you affected?
Enter the version of the package you're using.
Affected packages
Go/github.com/modelcontextprotocol/registry
Introduced in:
0Fixed in: 1.7.7Fix
go get github.com/modelcontextprotocol/registry@v1.7.7References
- https://github.com/modelcontextprotocol/registry/security/advisories/GHSA-rqv2-m695-f8j4[ADVISORY]
- https://nvd.nist.gov/vuln/detail/CVE-2026-44429[ADVISORY]
- https://github.com/modelcontextprotocol/registry/commit/78b7bbde07948049b916d76b4769faee461ff930[FIX]
- https://github.com/modelcontextprotocol/registry/pull/1249[FIX]
- https://github.com/modelcontextprotocol/registry/releases/tag/v1.7.7[WEB]