Vulnerability Description
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, sensitive information from heap memory may be leaked through the decoded pixel data (information disclosure). This occurs under default settings; simply reading a malicious EXR file is sufficient to trigger the issue, without any user interaction. This issue has been patched in version 3.4.8.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openexr | Openexr | >= 3.2.0, < 3.2.7 |
Related Weaknesses (CWE)
References
- https://github.com/AcademySoftwareFoundation/openexr/commit/5f6d0aaa9e43802917afPatch
- https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.8ProductRelease Notes
- https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-vcExploitVendor Advisory
- https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-vcExploitVendor Advisory
FAQ
What is CVE-2026-34543?
CVE-2026-34543 is a vulnerability with a CVSS score of 7.5 (HIGH). 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, sensitive i...
How severe is CVE-2026-34543?
CVE-2026-34543 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-34543?
Check the references section above for vendor advisories and patch information. Affected products include: Openexr Openexr.