{"schema_version":"1.7.5","id":"GO-2026-5014","published":"2026-05-22T02:08:34Z","modified":"2026-07-17T10:29:28.281906633Z","aliases":["CVE-2026-39828","GHSA-45gg-vh54-h5m9"],"related":["CGA-382c-27vm-3c8m","RHSA-2026:36796","RHSA-2026:41019"],"summary":"Invoking bypass of certificate restrictions in golang.org/x/crypto/ssh","details":"When an SSH server authentication callback returned PartialSuccessError with non-nil Permissions, those permissions were silently discarded, potentially dropping certificate restrictions such as force-command after a second factor succeeded. Returning non-nil Permissions with PartialSuccessError now results in a connection error.","affected":[{"package":{"name":"golang.org/x/crypto","ecosystem":"Go","purl":"pkg:golang/golang.org/x/crypto"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.52.0"}]}],"ecosystem_specific":{"imports":[{"path":"golang.org/x/crypto/ssh","symbols":["NewServerConn","connection.serverAuthenticate"]}]},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-5014.json"}}],"references":[{"type":"REPORT","url":"https://go.dev/issue/79562"},{"type":"WEB","url":"https://groups.google.com/g/golang-announce/c/a082jnz-LvI"},{"type":"FIX","url":"https://go.dev/cl/781621"}],"database_specific":{"review_status":"REVIEWED","url":"https://pkg.go.dev/vuln/GO-2026-5014"},"credits":[{"name":"NCC Group Cryptography Services, sponsored by Teleport"}]}