CVE-2026-59090

Name	CVE-2026-59090
Description	A flaw was found in GIMP's PSD file format plugin. This vulnerability, an unsigned integer underflow in the `block_rem` variable, occurs when a user opens a specially crafted `.psd` image file. The underflow leads to parser confusion, enabling an attacker to inject arbitrary data as layer resource blocks. This can ultimately result in arbitrary code execution, allowing the attacker to run malicious code on the victim's 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)
References	DSA-6470-1
Debian Bugs	1144526

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
gimp (PTS)	bullseye	2.10.22-4+deb11u2	vulnerable
	bullseye (security)	2.10.22-4+deb11u8	vulnerable
	bookworm, bookworm (security)	2.10.34-1+deb12u10	vulnerable
	trixie	3.0.4-3+deb13u9	vulnerable
	trixie (security)	3.0.4-3+deb13u10	fixed
	forky, sid	3.2.4-3	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
gimp	source	trixie	3.0.4-3+deb13u10		DSA-6470-1
gimp	source	(unstable)	(unfixed)			1144526

Notes

https://gitlab.gnome.org/GNOME/gimp/-/work_items/16509
Fixed by: https://gitlab.gnome.org/GNOME/gimp/-/commit/612c7e0a5775e7883789022c61f85a1c82c05505