Heap Out-of-Bounds Write Vulnerability in OpenImageIO Toolset
CVE-2026-63419
7.8HIGH
What is CVE-2026-63419?
A vulnerability in OpenImageIO, a toolset for manipulating image files, allows for a heap out-of-bounds write and memory corruption. This is due to an improper handling of zbuffer-only tiled IFF images, where the 16-bit public imagespec does not align with the 32-bit internal pixel size, leading to potential security risks if partially initialized data is copied into an undersized buffer. The issues are rectified in the latest versions.
Affected Version(s)
OpenImageIO < 3.0.21.0 < 3.0.21.0
OpenImageIO >= 3.1.0.0, < 3.1.16.0 < 3.1.0.0, 3.1.16.0
OpenImageIO >= 3.2.0.0-dev, < 3.2.0.3-beta1 < 3.2.0.0-dev, 3.2.0.3-beta1