CVE-2026-59187
Publication date 25 August 2026
Last updated 2 September 2026
Ubuntu priority
Description
OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. OpenEXR versions 3.3.0 through 3.3.12 and 3.4.0 through 3.4.13 are vulnerable to a heap out-of-bounds write when exrmetrics reads a crafted deep scanline EXR. This occurs with pixel conversion options such as --pixelmode float or --bench because DeepSlice requests FLOAT output while the backing sample buffers are allocated using the input HALF element size. The issue is fixed in versions 3.3.13 and 3.4.14.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| openexr | 26.04 LTS resolute |
Needs evaluation
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
Severity score breakdown
CVSS version: CVSS v3.0
Base score
7.1 · High
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-59187
- https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-6jj8-cxcr-j8hm
- https://github.com/AcademySoftwareFoundation/openexr/commit/46e70220dc91dbc1341fac4671704e970b450585 (v3.4.14-rc)
- https://github.com/AcademySoftwareFoundation/openexr/commit/7e772dd704b9b5d6dc2564647d89f7813f608e94 (v3.3.13-rc)