| Name | CVE-2026-67549 |
| Description | OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.1.16.0, A crafted 1-bit contiguous cmyk tiff is exposed through a native uint1 imagespec, so callers allocate a bit-packed buffer. tiffinput::read_native_scanline_locked() nevertheless invokes tiffinput::bit_convert() with 8-bit output and writes one expanded byte per value into that smaller buffer, resulting in a heap out-of-bounds write and memory corruption. The affected implementation is identified by src/tiff.imageio/tiffinput.cpp, TIFFInput::bit_convert(), TIFFInput::read_native_scanline_locked(), PHOTOMETRIC_SEPARATED, 1-bit CMYK, and native uint1 ImageSpec, which define the relevant source path, functions, state, and trigger. This issue is fixed in 3.1.16.0. |
| 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) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| openimageio (PTS) | bookworm | 2.4.7.1+dfsg-2 | fixed |
| trixie | 2.5.18.0+dfsg-1 | fixed | |
| forky, sid | 2.5.19.1+dfsg-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| openimageio | source | (unstable) | (not affected) |
- openimageio <not-affected> (Vulnerable code introduced later)
https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-3wxw-rqhw-j2w4
https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5296
Fixed by: https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/6e9b86ee4cce8fd7bed6cfb101a266d8f8a296d4 (v3.2.0.3-beta1)
Introduced by: https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/730687ae79bb6c3290afff535aa0e98b0531d165 (v3.1.4.0-beta)