high7.3
CVE-2026-34544
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry.
Impact
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, a crafted B44 or B44A EXR file can cause an out-of-bounds write in any application that decodes it via exr_decoding_run(). Consequences range from immediate crash (most likely) to corruption of adjacent heap allocations (layout-dependent). This issue has been patched in version 3.4.8.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | openexr | >= 3.4.0, <= 3.4.7 | 3.4.8 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Openexr | Openexr | from 3.2.0 before 3.2.7 from 3.3.0 before 3.3.9 from 3.4.0 before 3.4.8 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/AcademySoftwareFoundation/openexr/commit/35e7aa35e22c1975606be86e859f31cc1fc598ee
- https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.8
- https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-h762-rhv3-h25v
- https://github.com/advisories/GHSA-h762-rhv3-h25v
- https://nvd.nist.gov/vuln/detail/CVE-2026-34544