CVE-2025-47911

Name	CVE-2025-47911
Description	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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1127321

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
golang-golang-x-net (PTS)	bullseye	1:0.0+git20210119.5f4716e+dfsg-4	vulnerable
	bookworm	1:0.7.0+dfsg-1	vulnerable
	forky, sid, trixie	1:0.27.0-2	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
golang-golang-x-net	source	(unstable)	(unfixed)			1127321

Notes

https://groups.google.com/g/golang-announce/c/jnQcOYpiR2c
https://github.com/golang/go/issues/75682
Fixed by: https://github.com/golang/net/commit/59706cdaa8f95502fdec64b67b4c61d6ca58727d (v0.45.0)