Vulnerability 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, jpeg2000input.cpp:395 computes buffer size as const int bufsize = w * h * ch * buffer_bpp using signed 32-bit arithmetic. When the product exceeds INT_MAX, the result wraps to 0 or a small value. m_buf.resize() allocates an undersized buffer, and subsequent pixel write loops cause heap overflow. Conditional on USE_OPENJPH build flag. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openimageio | Openimageio | < 3.0.18.0 |
Related Weaknesses (CWE)
References
- https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSExploitVendor Advisory
- https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSExploitVendor Advisory
FAQ
What is CVE-2026-43905?
CVE-2026-43905 is a vulnerability with a CVSS score of 7.8 (HIGH). 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, jpeg2000input.cpp:395 computes buffer ...
How severe is CVE-2026-43905?
CVE-2026-43905 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-43905?
Check the references section above for vendor advisories and patch information. Affected products include: Openimageio Openimageio.