CVE-2026-43904

openimageio: OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX...

CVE-2026-43904 is fixed in 8 products on 1 platform, first by libopenimageio1.7 1.7.17~dfsg0-1ubuntu2+esm1, released May 14, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.8
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0017
6th percentile

OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, softimageinput.cpp:469 (mixed RLE) and :345 (pure RLE) do not clamp the run length to remaining scanline width before writing pixels. The raw packet path (line 403) correctly clamps with std::min, but RLE paths skip this check. A crafted .pic file causes heap overflow up to 65535 bytes. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.

Where it's fixed

ProductFixed inFixReleased
Linux
libopenimageio1.7 · Ubuntu 18.04.6 LTS (bionic) 1.7.17~dfsg0-1ubuntu2+esm1 libopenimageio1.7 1.7.17~dfsg0-1ubuntu2+esm1 May 14, 2026
libopenimageio2.1 · Ubuntu 20.04 LTS (focal) 2.1.12.0~dfsg0-1ubuntu0.1~esm1 libopenimageio2.1 2.1.12.0~dfsg0-1ubuntu0.1~esm1 May 14, 2026
libopenimageio2.4t64 · Ubuntu 24.04.5 LTS (noble) 2.4.17.0+dfsg-1.1ubuntu0.1~esm1 libopenimageio2.4t64 2.4.17.0+dfsg-1.1ubuntu0.1~esm1 May 14, 2026
libopenimageio2.5 · Ubuntu 26.04.1 LTS (resolute) 2.5.19.1+dfsg-2ubuntu0.1~esm1 libopenimageio2.5 2.5.19.1+dfsg-2ubuntu0.1~esm1 May 14, 2026
openimageio · Debian 14 3.1.18.0+dfsg-2 DEBIAN-CVE-2026-43904 May 14, 2026
openimageio-tools · Ubuntu 18.04.6 LTS (bionic) 1.7.17~dfsg0-1ubuntu2+esm1 openimageio-tools 1.7.17~dfsg0-1ubuntu2+esm1 May 14, 2026
openimageio-tools · Ubuntu 20.04 LTS (focal) 2.1.12.0~dfsg0-1ubuntu0.1~esm1 openimageio-tools 2.1.12.0~dfsg0-1ubuntu0.1~esm1 May 14, 2026
openimageio-tools · Ubuntu 24.04.5 LTS (noble) 2.4.17.0+dfsg-1.1ubuntu0.1~esm1 openimageio-tools 2.4.17.0+dfsg-1.1ubuntu0.1~esm1 May 14, 2026
openimageio-tools · Ubuntu 26.04.1 LTS (resolute) 2.5.19.1+dfsg-2ubuntu0.1~esm1 openimageio-tools 2.5.19.1+dfsg-2ubuntu0.1~esm1 May 14, 2026
python-openimageio · Ubuntu 18.04.6 LTS (bionic) 1.7.17~dfsg0-1ubuntu2+esm1 python-openimageio 1.7.17~dfsg0-1ubuntu2+esm1 May 14, 2026
python3-openimageio · Ubuntu 20.04 LTS (focal) 2.1.12.0~dfsg0-1ubuntu0.1~esm1 python3-openimageio 2.1.12.0~dfsg0-1ubuntu0.1~esm1 May 14, 2026
python3-openimageio · Ubuntu 24.04.5 LTS (noble) 2.4.17.0+dfsg-1.1ubuntu0.1~esm1 python3-openimageio 2.4.17.0+dfsg-1.1ubuntu0.1~esm1 May 14, 2026
python3-openimageio · Ubuntu 26.04.1 LTS (resolute) 2.5.19.1+dfsg-2ubuntu0.1~esm1 python3-openimageio 2.5.19.1+dfsg-2ubuntu0.1~esm1 May 14, 2026

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