{"schema_version":"1.3.1","id":"GO-2026-4440","modified":"2026-02-05T17:23:14Z","published":"2026-02-05T17:23:14Z","aliases":["CVE-2025-47911"],"summary":"Quadratic parsing complexity in golang.org/x/net/html","details":"The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service (DoS) if an attacker provides specially crafted HTML content.","affected":[{"package":{"name":"golang.org/x/net","ecosystem":"Go"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.45.0"}]}],"ecosystem_specific":{"imports":[{"path":"golang.org/x/net/html","symbols":["Parse","ParseFragment","ParseFragmentWithOptions","ParseWithOptions","parser.parse"]}]}}],"references":[{"type":"FIX","url":"https://go.dev/cl/709876"},{"type":"REPORT","url":"https://github.com/golang/vulndb/issues/4440"},{"type":"WEB","url":"https://groups.google.com/g/golang-announce/c/jnQcOYpiR2c"}],"credits":[{"name":"Guido Vranken"},{"name":"Jakub Ciolek"}],"database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-4440","review_status":"REVIEWED"}}