CVE-2026-113681

Name	CVE-2026-113681
Description	OpenImageIO before 3.0.20.0, 3.1.x before 3.1.15.0, and 3.2.x before 3.2.0.3-beta1 contains an integer overflow in cineon::Codec::Read that undersizes the scanline buffer, causing a heap out-of-bounds read. Attackers can supply a crafted Cineon file with a huge declared width that wraps the size calculation to zero, so UnPackPacked reads past a 4-byte buffer and crashes the application.
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	3.1.18.1+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/pull/5567
https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5568
Fixed by: https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/07e3c3e0373551c57e7d8e01353deaa4b3646613 (main)