{"id":"CVE-2025-47911","aliases":["GHSA-w4gw-w5jq-g9jh","GO-2026-4440"],"url":"https://o3.security/vulnerability/CVE-2025-47911","summary":"golang.org/x/net/html has a Quadratic Parsing Complexity issue","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.","published":"2026-02-05T18:16:09.893Z","modified":"2026-07-31T18:30:15.073516144Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"epss":{"score":0.00502,"percentile":0.40185,"asOf":"2026-08-06"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"golang.org/x/net/html","fixedVersion":"0.45.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://groups.google.com/g/golang-announce/c/jnQcOYpiR2c"},{"type":"ADVISORY","url":"https://pkg.go.dev/vuln/GO-2026-4440"},{"type":"REPORT","url":"https://github.com/golang/vulndb/issues/4440"},{"type":"FIX","url":"https://go.dev/cl/709876"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-31T18:30:15.073516144Z"}}