CVE-2026-43905
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
ProductOpenimageio
PublishedMay 14, 2026
First seenMay 14, 2026
Weakness typeCWE-190Integer overflow
How to fix
Update
- openimageio openimageio3.0.18.0, 3.1.13.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openimageio openimageio | v < 3.0.18.0, 3.1.4.0 ≤ v < 3.1.13.0 | 3.0.18.0, 3.1.13.0 |
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