Medium 5.5Published Aug 25, 2026

CVE-2026-59985OpenEXR: Heap out-of-bounds read in OpenEXRCore RLE decoding on ILP32

Updated under an hour ago (2026-10-19 07:00 UTC)

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Every CVE for AcademySoftwareFoundation openexr

Exploited in the last 30 days

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. OpenEXR versions 3.2.0 through 3.2.10, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13 are vulnerable on ILP32 builds to a heap out-of-bounds read. The issue occurs when a crafted RLE-compressed EXR causes the 64-bit unpacked size to truncate before allocation in OpenEXRCore decoding.c and unpack_32bit() reads beyond the resulting buffer, allowing denial of service. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.

CVSS: 5.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-125
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Aug 25, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

AcademySoftwareFoundation openexr academysoftwarefoundation:openexr (from the name)	from 3.2.0, < 3.2.11; from 3.3.0, < 3.3.13; from 3.4.0, < 3.4.14	CNA record

References

https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-v6v5-344m-64vmx-refsource-confirm
https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.2.11x-refsource-misc
https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.3.13x-refsource-misc
https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.14x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.