CVE-2026-34589

openexr: OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for t...

CVE-2026-34589 is fixed in openexr on 1 platform, first by DEBIAN-CVE-2026-34589, released April 6, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.0
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0043
37th percentile

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.2.0 to before 3.2.7, 3.3.9, and 3.4.9, the DWA lossy decoder constructs temporary per-component block pointers using signed 32-bit arithmetic. For a large enough width, the calculation overflows and later decoder stores operate on a wrapped pointer outside the allocated rowBlock backing store. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.

Where it's fixed

ProductFixed inFixReleased
Linux
openexr · Debian 14 3.4.14-0.1 DEBIAN-CVE-2026-34589 Apr 6, 2026
openexr · opensuse-leap 16.0 3.2.2-160000.6.1 OPENSUSE-SU-2026:20605-1 Apr 22, 2026

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