CVE-2026-82343

Name	CVE-2026-82343
Description	A flaw was found in the file-psd plugin in GIMP. When processing a specially crafted PSD image file, the plugin does not properly validate the channel-count parameter. This incorrect validation leads to improper memory bounds checking, resulting in both a heap out-of-bounds read and a stack out-of-bounds access. This issue can result in an application crash, leading to a denial of service or a limited information disclosure of memory contents.
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
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	vulnerable
	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	(unstable)	(unfixed)

Notes

https://gitlab.gnome.org/GNOME/gimp/-/work_items/16587
Fixed by: https://gitlab.gnome.org/GNOME/gimp/-/commit/6b6a3e6d8ccdf2a7d6488d0df28ec033a9801a38