{"schema_version":"1.3.1","id":"GO-2026-5942","modified":"2026-08-14T15:30:22Z","published":"2026-07-14T17:29:16Z","aliases":["CVE-2026-46600"],"summary":"Parsing an invalid SVCB or HTTPS RR can panic in golang.org/x/net/dns/dnsmessage","details":"Parsing an invalid SVCB or HTTPS RR can panic when the size of a parameter value overflows the message buffer.","affected":[{"package":{"name":"stdlib","ecosystem":"Go"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.26.0-0"},{"fixed":"1.26.6"},{"introduced":"1.27.0-0"},{"fixed":"1.27.0-rc.3"}]}],"ecosystem_specific":{"imports":[{"path":"net","symbols":["LookupCNAME","Resolver.LookupCNAME","cgoResSearch"]}]}},{"package":{"name":"golang.org/x/net","ecosystem":"Go"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.56.0"}]}],"ecosystem_specific":{"imports":[{"path":"golang.org/x/net/dns/dnsmessage","symbols":["Message.Unpack","Parser.Additional","Parser.AllAdditionals","Parser.AllAnswers","Parser.AllAuthorities","Parser.Answer","Parser.Authority","Parser.HTTPSResource","Parser.SVCBResource","unpackSVCBResource"]}]}}],"references":[{"type":"FIX","url":"https://go.dev/cl/786345"},{"type":"REPORT","url":"https://go.dev/issue/79795"},{"type":"WEB","url":"https://groups.google.com/g/golang-announce/c/94pEornpRlI"}],"credits":[{"name":"Mundur (https://github.com/M0nd0R)"}],"database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-5942","review_status":"REVIEWED"}}