CVE-2026-43906

OpenImageIO: HEIF Heap overflow

State: Published
Severity: 8.5 High
Published: May 14, 2026
Updated: May 15, 2026
Reserved: May 4, 2026

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 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.

Scores

CVSS	Score	Vector	Source
4.0	8.5 High	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-122 Heap-based Buffer Overflow

Affected Products

Product	Versions
OpenImageIOAcademySoftwareFoundation	< 3.0.18.0Affected >= 3.1.4.0-beta, < 3.1.13.0Affected

References

https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-gmrp-x952-3m66

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