CVE-2026-43908: CWE-190: Integer Overflow or Wraparound 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 3.0.18.0 and 3.1.13.0, a signed 32-bit integer overflow in the pixel-loop index expression i * 3 inside ConvertCbYCrYToRGB() causes the function to compute a large negative pointer offset into the output buffer, producing an out-of-bounds write that crashes the process. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.
AI Analysis
Technical Summary
OpenImageIO, a toolset for image file manipulation used in VFX and animation, contains an integer overflow vulnerability (CWE-190) in the ConvertCbYCrYToRGB() function. Specifically, a signed 32-bit integer overflow in the pixel-loop index expression (i * 3) causes the function to calculate a large negative pointer offset, resulting in an out-of-bounds write (CWE-787) to the output buffer. This can crash the process using the library. The vulnerability affects versions prior to 3.0.18.0 and versions from 3.1.4.0-beta up to but not including 3.1.13.0. The issue is resolved in OpenImageIO versions 3.0.18.0 and 3.1.13.0.
Potential Impact
Successful exploitation of this vulnerability can cause an out-of-bounds write leading to process crashes and potentially arbitrary code execution due to memory corruption. The CVSS score of 8.8 indicates high impact on confidentiality, integrity, and availability. No known exploits in the wild have been reported to date.
Mitigation Recommendations
The vulnerability is fixed in OpenImageIO versions 3.0.18.0 and 3.1.13.0. Users should upgrade to these or later versions to remediate the issue. Patch status is not explicitly confirmed beyond the fixed versions; therefore, verify with the vendor advisory or official release notes for the latest remediation guidance.
CVE-2026-43908: CWE-190: Integer Overflow or Wraparound 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 3.0.18.0 and 3.1.13.0, a signed 32-bit integer overflow in the pixel-loop index expression i * 3 inside ConvertCbYCrYToRGB() causes the function to compute a large negative pointer offset into the output buffer, producing an out-of-bounds write that crashes the process. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.
CVSS v3.1
Score 8.8high
Affected software
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, a toolset for image file manipulation used in VFX and animation, contains an integer overflow vulnerability (CWE-190) in the ConvertCbYCrYToRGB() function. Specifically, a signed 32-bit integer overflow in the pixel-loop index expression (i * 3) causes the function to calculate a large negative pointer offset, resulting in an out-of-bounds write (CWE-787) to the output buffer. This can crash the process using the library. The vulnerability affects versions prior to 3.0.18.0 and versions from 3.1.4.0-beta up to but not including 3.1.13.0. The issue is resolved in OpenImageIO versions 3.0.18.0 and 3.1.13.0.
Potential Impact
Successful exploitation of this vulnerability can cause an out-of-bounds write leading to process crashes and potentially arbitrary code execution due to memory corruption. The CVSS score of 8.8 indicates high impact on confidentiality, integrity, and availability. No known exploits in the wild have been reported to date.
Mitigation Recommendations
The vulnerability is fixed in OpenImageIO versions 3.0.18.0 and 3.1.13.0. Users should upgrade to these or later versions to remediate the issue. Patch status is not explicitly confirmed beyond the fixed versions; therefore, verify with the vendor advisory or official release notes for the latest remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-04T16:11:33.086Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a06248cec166c07b00b4c63
Added to database: 05/14/2026, 19:37:48 UTC
Last enriched: 05/14/2026, 19:51:58 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 50
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