CVE-2026-64612

Name	CVE-2026-64612
Description	A flaw was found in libcupsfilters and cups-filters. The PNG image reading function creates a libpng reader without installing an error recovery handler, causing the CUPS image filter process to abort when processing a malformed PNG file. An unauthenticated attacker could exploit this by submitting a specially crafted PNG print job, leading to denial of service of the in-flight print job.
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
cups-filters (PTS)	bullseye	1.28.7-1+deb11u2	vulnerable
	bullseye (security)	1.28.7-1+deb11u4	vulnerable
	bookworm	1.28.17-3+deb12u2	vulnerable
	bookworm (security)	1.28.17-3+deb12u1	vulnerable
	trixie	1.28.17-6+deb13u1	vulnerable
	forky, sid	1.28.17-7	vulnerable
libcupsfilters (PTS)	trixie	2.0.0-3+deb13u1	vulnerable
	forky, sid	2.1.1-2	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
cups-filters	source	(unstable)	(unfixed)
libcupsfilters	source	(unstable)	(unfixed)

Notes

https://bugzilla.redhat.com/show_bug.cgi?id=2502801
https://github.com/OpenPrinting/libcupsfilters/security/advisories/GHSA-7mxj-cfq5-84ch (not public)