{"id":"GO-2026-6601","revision":"605907cd446c4b5c917d7f5589801f15","records":[{"revision":"605907cd446c4b5c917d7f5589801f15","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2026-6601","aliases":["BIT-golang-2026-94444","CVE-2026-94444"],"title":"Checksum bypass for golang.org/fips140 in cmd/go","description":"Previously, a user operating inside of a malicious Go project that defines a bogus golang.org/fips140 and operates a malicious GOMODPROXY the user chooses to connect to can serve an arbitrary module in its place.\n\nWe now unpack the trusted ziphash for the bundled golang.org/fips140 module and construct its entry in the GOMODCACHE such that it can be verified by the toolchain.","state":0,"publishedAt":"2026-10-08T22:31:09+00:00","modifiedAt":"2026-10-16T09:55:40.9567844+00:00","affected":[{"ecosystem":"Go","name":"toolchain","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.26.9"},{"kind":"introduced","version":"1.27.0-0"},{"kind":"fixed","version":"1.27.2"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://go.dev/cl/840685","https://go.dev/issue/81833","https://groups.google.com/g/golang-announce/c/U2fTuyDJznI"],"sourceUrl":"https://osv.dev/vulnerability/GO-2026-6601","license":"OSV · upstream source license applies","key":"osv:GO-2026-6601","identifiers":["GO-2026-6601","BIT-golang-2026-94444","CVE-2026-94444"]},"retained":false,"historicalAffected":[]}],"coverage":[]}