CVE-2026-4645

Name	CVE-2026-4645
Description	A flaw was found in the `github.com/antchfx/xpath` component. A remote attacker could exploit this vulnerability by submitting crafted Boolean XPath expressions that evaluate to true. This can cause an infinite loop in the `logicalQuery.Select` function, leading to 100% CPU utilization and a Denial of Service (DoS) condition for the affected system.
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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
golang-github-antchfx-xpath (PTS)	bookworm, bullseye	1.1.2-2	vulnerable
	trixie	1.3.3-1	vulnerable
	forky, sid	1.3.6-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
golang-github-antchfx-xpath	source	(unstable)	1.3.6-1

https://github.com/antchfx/xpath/issues/121
Fixed by: https://github.com/antchfx/xpath/commit/afd4762cc342af56345a3fb4002a59281fcab494 (v1.3.6)