CVE-2026-50291

Name	CVE-2026-50291
Description	OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to versions 3.0.16.0 and 3.1.11.0, processing a crafted BMP file through oiiotool or an application linked to OpenImageIO can reach BMP palette handling in src/bmp.imageio/bmpinput.cpp with an empty color table. BmpInput::read_native_scanline then performs an invalid palette read while decoding an RLE-compressed scanline, causing a process crash and denial of service. This issue is fixed in versions 3.0.16.0 and 3.1.11.0.
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
openimageio (PTS)	bookworm	2.4.7.1+dfsg-2	vulnerable
	trixie	2.5.18.0+dfsg-1	vulnerable
	forky, sid	2.5.19.1+dfsg-2	vulnerable

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

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

Notes

https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-q3c7-3225-66h7
https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5030
https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/ee3370d004d5895554239b4302c59eedb721f086 (v3.2.0.0-dev)
https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/be984856e315e0a82cd866745b544c8c4cb8bd45 (v3.0.16.0)