Intel

AIKIDO-2026-467152

AcademySoftwareFoundation.openexr is vulnerable to Heap-based Buffer Overflow

Heap-based Buffer OverflowGHSA-r24r-74rc-588f Published Aug 10, 2026

33

Low Risk

This Affects:

C++AcademySoftwareFoundation.openexr
2.0.0 - 3.4.13
Fixed in 3.4.14
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TL;DR

The exrmultipart convert path sizes channel-store buffers with values that truncate on ILP32 builds for oversized images. A crafted EXR processed by exrmultipart can therefore cause a heap buffer overflow on 32-bit builds. The fix rejects or correctly sizes the oversized channel-store allocation.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range and you run the 32-bit (ILP32) exrmultipart tool's convert path on untrusted EXR files.

Background info

AcademySoftwareFoundation.openexr is vulnerable to Heap-based Buffer Overflow in versions 2.0.0 - 3.4.13.

How to fix this

Upgrade the AcademySoftwareFoundation.openexr library to the patch version.