{"id":"CVE-2021-33194","aliases":["BIT-golang-2021-33194","GHSA-83g2-8m93-v3w7","GO-2021-0238"],"url":"https://o3.security/vulnerability/CVE-2021-33194","summary":"golang.org/x/net/html Infinite Loop vulnerability","details":"golang.org/x/net before v0.0.0-20210520170846-37e1c6afe023 allows attackers to cause a denial of service (infinite loop) via crafted ParseFragment input.","published":"2021-05-26T15:15:08.217Z","modified":"2026-07-08T05:57:07.335805490Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"golang.org/x/net","fixedVersion":"0.0.0-20210520170846-37e1c6afe023"}],"fix":{"url":"https://github.com/golang/net/commit/37e1c6afe02340126705deced573a85ab75209d7","label":"golang/net@37e1c6a"},"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4CHKSFMHZVOBCZSSVRE3UEYNKARTBMTM/"},{"type":"ADVISORY","url":"https://groups.google.com/g/golang-announce/c/wPunbCPkWUg"},{"type":"FIX","url":"https://github.com/golang/net/commit/37e1c6afe02340126705deced573a85ab75209d7"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:57:07.335805490Z"}}