CVE-2026-65969OpenImageIO: TGA-to-GIF palette split signed overflow causes SIGSEGV
Updated under an hour ago ()
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It affects AcademySoftwareFoundation OpenImageIO and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1, A truncated tga can leave a pending gif frame that is processed during output close. gifsplitpalette() computes numpixels multiplied by the palette partition width in signed 32-bit arithmetic; a large image overflows that intermediate, corrupts subpixelsa, and drives an out-of-bounds read while building the gif palette, resulting in a process crash and denial of service. The affected implementation is identified by src/gif.imageio/gif.h, GifSplitPalette(), numPixels, subPixelsA, GIFOutput, and truncated TGA input, which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1.
- CVSS
- 5.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-125, CWE-190
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Analyzed
- Record last updated
- Sep 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
AcademySoftwareFoundation OpenImageIO academysoftwarefoundation:openimageio (from the name) | before 3.0.21.0; from 3.1.0.0, < 3.1.16.0; from 3.2.0.0-dev, < 3.2.0.3-beta1 | CNA record |
openimageio openimageio openimageio:openimageio | before 3.0.21.0; from 3.1.0.0 through 3.1.16.0; 3.2.0.0; 3.2.0.2 | NVD |
References
- https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-9mwc-fjgj-8wmqx-refsource-confirm, exploit, vendor-advisory
- https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5292x-refsource-misc, issue-tracking, patch
- https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/134977da625a84fc5a09a34321806f1fe0093c24x-refsource-misc, patch
- https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.21.0x-refsource-misc, release-notes
- https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.16.0x-refsource-misc, release-notes
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.