CVE-2026-5186

Name	CVE-2026-5186
Description	A weakness has been identified in Nothings stb up to 2.30. This impacts the function stbi__load_gif_main of the file stb_image.h of the component Multi-frame GIF File Handler. This manipulation causes double free. The attack requires local access. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
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
libstb (PTS)	bullseye	0.0~git20200713.b42009b+ds-1	vulnerable
	bullseye (security)	0.0~git20200713.b42009b+ds-1+deb11u1	vulnerable
	bookworm	0.0~git20220908.8b5f1f3+ds-1	vulnerable
	trixie	0.0~git20241109.5c20573+ds-1	vulnerable
	forky, sid	0.0~git20250907.fede005+ds-1	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
libstb	source	(unstable)	(unfixed)

check upstream details