{"id":"GO-2026-5607","revision":"ff15f20e4e5e436cb5b6dbe4089cdef0","records":[{"revision":"ff15f20e4e5e436cb5b6dbe4089cdef0","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2026-5607","aliases":["CVE-2026-44430","GHSA-r48c-v28r-pf6v"],"title":"MCP Registry has an unauthenticated SSRF: HTTP namespace verification dials 6to4 / NAT64 / site-local IPv6 addresses, bypassing private-address allowlist in github.com/modelcontextprotocol/registry","description":"MCP Registry has an unauthenticated SSRF: HTTP namespace verification dials 6to4 / NAT64 / site-local IPv6 addresses, bypassing private-address allowlist in github.com/modelcontextprotocol/registry","state":0,"publishedAt":"2026-06-25T22:34:34+00:00","modifiedAt":"2026-06-25T23:01:24.3284601+00:00","affected":[{"ecosystem":"Go","name":"github.com/modelcontextprotocol/registry","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.7.7"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://github.com/modelcontextprotocol/registry/security/advisories/GHSA-r48c-v28r-pf6v","https://nvd.nist.gov/vuln/detail/CVE-2026-44430","https://github.com/modelcontextprotocol/registry/commit/f5f40bd98084466eaf18fe48ea62a0d534caa774","https://github.com/modelcontextprotocol/registry/pull/1250","https://github.com/modelcontextprotocol/registry/releases/tag/v1.7.7"],"sourceUrl":"https://osv.dev/vulnerability/GO-2026-5607","license":"OSV · upstream source license applies","key":"osv:GO-2026-5607","identifiers":["GO-2026-5607","CVE-2026-44430","GHSA-r48c-v28r-pf6v"]},"retained":false,"historicalAffected":[]}],"coverage":[]}