CVE-2026-34544

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.

CVSS v3 7.3 HIGH

7.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.3 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/AcademySoftwareFoundation/openexr/commit/35e7aa35e22c1975606be86e859f31cc1fc598ee	Patch
https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.8	Product Release Notes
https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-h762-rhv3-h25v	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:openexr:openexr::::::::
	cpe:2.3:a:openexr:openexr::::::::
	cpe:2.3:a:openexr:openexr::::::::

History

26 Oct 2026, 00:10

Type	Values Removed	Values Added
Summary		(es) OpenEXR proporciona la especificación y la implementación de referencia del formato de archivo EXR, un formato de almacenamiento de imágenes para la industria cinematográfica. Desde la versión 3.4.0 hasta antes de la versión 3.4.8, un archivo EXR B44 o B44A manipulado puede causar una escritura fuera de límites en cualquier aplicación que lo decodifique a través de exr_decoding_run(). Las consecuencias van desde un fallo inmediato (lo más probable) hasta la corrupción de asignaciones de memoria heap adyacentes (dependiente de la disposición). Este problema ha sido parcheado en la versión 3.4.8.

Information

Published : 2026-04-01 21:17

Updated : 2026-10-26 00:10

NVD link : CVE-2026-34544

Mitre link : CVE-2026-34544

CVE.ORG link : CVE-2026-34544

JSON object : View

Products Affected

openexr

openexr

CWE

CWE-190

Integer Overflow or Wraparound

CWE-787

Out-of-bounds Write

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