CVE-2026-59181: AcademySoftwareFoundation OpenImageIO · Stack-based Buffer Overflow
Affects AcademySoftwareFoundation OpenImageIOSource CVE Database V5
Not known to be exploited · CVSS 6.1 Medium · fixed in 3.2.0.3-beta1 : update AcademySoftwareFoundation OpenImageIO when convenient.
Data as of 2 Nov 2026, 10:58 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 3.2.0.3-beta1, 3.1.15.0, 3.0.20.0
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/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, 3.1.15.0 or 3.0.20.0.
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
Upgrade OpenImageIO to version 3.0.20.0, 3.1.15.0, or 3.2.0.3-beta1 or later, where this vulnerability has been fixed. No other mitigation guidance is provided or required.
Description
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.20.0, 3.1.15.0, and 3.2.0.3-beta1, A crafted cineon file can supply a numberofelements value greater than the format maximum of eight. cineoninput::open() uses that unchecked value as the loop bound while filling the fixed strings[8] array, writing pointers beyond the stack buffer and into adjacent state, resulting in memory corruption and denial of service. The affected implementation is identified by src/cineon.imageio/cineoninput.cpp, CineonInput::open(), numberOfElements, and strings[8], which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.20.0, 3.1.15.0, and 3.2.0.3-beta1.
References
- github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-xh8r-vmqq-56pp (opens in a new tab)
- github.com/AcademySoftwareFoundation/OpenImageIO/pull/5250 (opens in a new tab)
- github.com/AcademySoftwareFoundation/OpenImageIO/commit/908f22f5528e88e5e96184c194caa26b54b2b85f (opens in a new tab)
- github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.20.0 (opens in a new tab)
- github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.15.0 (opens in a new tab)