Vulnerability Description
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 Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.2.11
- https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.3.13
- https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.14
- https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-v6
- https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-v6
FAQ
What is CVE-2026-59985?
CVE-2026-59985 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 t...
How severe is CVE-2026-59985?
CVE-2026-59985 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-59985?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.