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CVE-2026-34544

Published: Apr 1, 2026

Modified: Apr 2, 2026

PUBLISHED

Description

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before version 3.4.8, a crafted B44 or B44A EXR file can cause an out-of-bounds write in any application that decodes it via exr_decoding_run(). Consequences range from immediate crash (most likely) to corruption of adjacent heap allocations (layout-dependent). This issue has been patched in version 3.4.8.

Vendor	Product	Versions
AcademySoftwareFoundation	openexr	affected `>= 3.4.0, < 3.4.8`

Weaknesses (CWE)

References

https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-h762-rhv3-h25v

x_refsource_CONFIRM

https://github.com/AcademySoftwareFoundation/openexr/commit/35e7aa35e22c1975606be86e859f31cc1fc598ee

x_refsource_MISC

https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.8

x_refsource_MISC

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