CVE-2026-78475

Name	CVE-2026-78475
Description	A flaw was found in the file-pix (ESM) plugin in GIMP. When processing a specially crafted PIX image file, the plugin allocates a Variable-Length Array (VLA) on the stack without proper bounds checking, causing an unbounded stack allocation followed by a 21-byte stack over-read. This can result in a denial of service due to stack exhaustion and a limited information disclosure of stack memory contents into an intermediate file.
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	1145874

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
gimp (PTS)	bookworm, bookworm (security)	2.10.34-1+deb12u10	vulnerable
	trixie (security), trixie	3.0.4-3+deb13u10	vulnerable
	forky	3.2.4-3	vulnerable
	sid	3.2.6-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
gimp	source	(unstable)	3.2.6-1			1145874

Notes

[trixie] - gimp <no-dsa> (Minor issue)
https://gitlab.gnome.org/GNOME/gimp/-/work_items/16580
Fixed by: https://gitlab.gnome.org/GNOME/gimp/-/commit/27d83534e637cf160f913ac6d6388d5a5555e9d8 (GIMP_3_2_6)