CVE-2026-43906: Openimageio

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

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 heap-based buffer overflow in the HEIF decoder of OpenImageIO allows out-of-bounds writes via crafted images due to a subimage metadata mismatch, leading to memory corruption and potential code execution. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.

Affected products

• Openimageio Openimageio: before 3.0.18.0 (fixed in 3.0.18.0); from 3.1.4.0, before 3.1.13.0 (fixed in 3.1.13.0); version 3.2.0.2 only

Published 2026-05-14. Last modified 2026-06-17.