CVE-2026-65969: AcademySoftwareFoundation OpenImageIO · Out-of-bounds Read
Affects AcademySoftwareFoundation OpenImageIOSource CVE Database V5
Not known to be exploited · CVSS 5.5 Medium · fixed in 3.2.0.3-beta1 : update AcademySoftwareFoundation OpenImageIO when convenient.
Data as of 2 Nov 2026, 10:58 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 3.2.0.3-beta1, 3.1.16.0, 3.0.21.0
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 18 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2 Nov 2026.
What to do
Upgrade OpenImageIO and academysoftwarefoundation/OpenImageIO to 3.2.0.3-beta1, 3.1.16.0 or 3.0.21.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| AcademySoftwareFoundationOpenImageIO | Affected
| Fixed in
|
| AcademySoftwareFoundationOpenImageIO | Affected
| Fixed in
|
| AcademySoftwareFoundationOpenImageIO | Affected
| Fixed in
|
GitHubacademysoftwarefoundation/OpenImageIOpkg:github/academysoftwarefoundation/OpenImageIOOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
This vulnerability is fixed in OpenImageIO versions 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1. Users should upgrade to one of these versions or later to remediate the issue. No other mitigation or workaround is indicated.
Description
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.
References
- github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-9mwc-fjgj-8wmq (opens in a new tab)
- github.com/AcademySoftwareFoundation/OpenImageIO/pull/5292 (opens in a new tab)
- github.com/AcademySoftwareFoundation/OpenImageIO/commit/134977da625a84fc5a09a34321806f1fe0093c24 (opens in a new tab)
- github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.21.0 (opens in a new tab)
- github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.16.0 (opens in a new tab)