{"schema_version":"1.7.5","id":"GO-2026-4977","published":"2026-05-07T19:21:40Z","modified":"2026-09-04T10:25:53.826196397Z","aliases":["BIT-golang-2026-42499","CVE-2026-42499"],"related":["CGA-m28j-j59g-3rp3","RHSA-2026:17713","RHSA-2026:17714","RHSA-2026:22112","RHSA-2026:22120","RHSA-2026:22121","RHSA-2026:49702","RHSA-2026:49712","RHSA-2026:54552","RHSA-2026:56785","RHSA-2026:56852","RHSA-2026:56910","RHSA-2026:57482","RHSA-2026:57649","RHSA-2026:57845","RHSA-2026:57914","RHSA-2026:59830","RHSA-2026:60018","RHSA-2026:61253","RHSA-2026:62406","RHSA-2026:62407","RHSA-2026:62753","RHSA-2026:62754","RHSA-2026:62803","RHSA-2026:63022","RHSA-2026:63163","RHSA-2026:63332"],"summary":"Quadratic string concatenation in consumePhrase in net/mail","details":"Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC 5322.","affected":[{"package":{"name":"stdlib","ecosystem":"Go","purl":"pkg:golang/stdlib"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.25.10"},{"introduced":"1.26.0-0"},{"fixed":"1.26.3"}]}],"ecosystem_specific":{"imports":[{"path":"net/mail","symbols":["AddressParser.Parse","AddressParser.ParseList","Header.AddressList","ParseAddress","ParseAddressList","addrParser.consumePhrase"]}]},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-4977.json"}}],"references":[{"type":"REPORT","url":"https://go.dev/issue/78987"},{"type":"FIX","url":"https://go.dev/cl/771520"},{"type":"WEB","url":"https://groups.google.com/g/golang-announce/c/qcCIEXso47M"}],"database_specific":{"review_status":"REVIEWED","url":"https://pkg.go.dev/vuln/GO-2026-4977"}}