CVE-2026-59181: CWE-121: Stack-based Buffer Overflow in AcademySoftwareFoundation OpenImageIO
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.
AI Analysis
Technical Summary
OpenImageIO versions before 3.0.20.0, 3.1.15.0, and 3.2.0.3-beta1 contain a stack-based buffer overflow in the CineonInput::open() function. A crafted cineon file can specify a numberOfElements value greater than eight, which is used unchecked as the loop bound when filling the fixed strings[8] array. This leads to writing pointers beyond the stack buffer into adjacent memory, causing memory corruption and potential denial of service. The vulnerability is identified in src/cineon.imageio/cineoninput.cpp and is fixed in the stated versions.
Potential Impact
Exploitation of this vulnerability can cause memory corruption and denial of service in affected OpenImageIO versions. There is no indication of confidentiality or integrity impact, and no known exploits in the wild have been reported.
Mitigation Recommendations
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.
CVE-2026-59181: CWE-121: Stack-based Buffer Overflow in AcademySoftwareFoundation OpenImageIO
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.
CVSS v3.1
Score 6.1medium
Affected software
AcademySoftwareFoundation
OpenImageIO
pkg:github/academysoftwarefoundation/OpenImageIORun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
OpenImageIO versions before 3.0.20.0, 3.1.15.0, and 3.2.0.3-beta1 contain a stack-based buffer overflow in the CineonInput::open() function. A crafted cineon file can specify a numberOfElements value greater than eight, which is used unchecked as the loop bound when filling the fixed strings[8] array. This leads to writing pointers beyond the stack buffer into adjacent memory, causing memory corruption and potential denial of service. The vulnerability is identified in src/cineon.imageio/cineoninput.cpp and is fixed in the stated versions.
Potential Impact
Exploitation of this vulnerability can cause memory corruption and denial of service in affected OpenImageIO versions. There is no indication of confidentiality or integrity impact, and no known exploits in the wild have been reported.
Mitigation Recommendations
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.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-02T19:53:48.830Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aad5cfd55bf5e2cf53217fa
Added to database: 09/18/2026, 15:47:09 UTC
Last enriched: 09/18/2026, 16:02:02 UTC
Last updated: 09/18/2026, 17:06:14 UTC
Views: 5
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.