Vulnerability Description
OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions 3.1.0 through 3.2.10, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13, an int32_t multiplication in OpenEXRCore's unpack_sample_table() can overflow while decoding a crafted deep tiled EXR file, producing an invalid pointer that leads to a read from an unmapped memory address and a crash. Because the overflow occurs in the standard decoding path (exr_decoding_run), any application that decodes deep tiled EXR files is affected. 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/commit/5e55a64ad1f119a81665
- https://github.com/AcademySoftwareFoundation/openexr/commit/a6cf183725b5665ac3fd
- https://github.com/AcademySoftwareFoundation/openexr/commit/e2adb5be3bbc3a1f82f2
- https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-rq
FAQ
What is CVE-2026-59183?
CVE-2026-59183 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. In versions 3.1.0 through 3.2.10, 3.3.0 through 3.3.12, and 3.4.0 throug...
How severe is CVE-2026-59183?
CVE-2026-59183 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-2026-59183?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.