Vulnerability · Published Aug 25, 2026 · Assigned by GitHub_M
CVE-2026-59189OpenEXR: Out-of-bounds read in DeepImageChannel::row() for non-zero dataWindow origin
High 7.1
In plain English
A high-severity out-of-bounds read in openexr from AcademySoftwareFoundation. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In OpenEXRUtil versions 3.3.0 through 3.3.12 and 3.4.0 through 3.4.12, the documented TypedDeepImageChannel<T>::row() API can return an out-of-bounds pointer when a deep image has a non-zero dataWindow origin, resulting in a heap out-of-bounds read and crash, with potential information disclosure under a controlled heap layout. The flaw arises because ImfDeepImageChannel uses two conflicting coordinate models: at(x, y) uses absolute coordinates (with _base offset by dataWindow.min), while row(r) is documented as 0-based logical access. For a non-zero dataWindow.min, row(0) therefore points outside the _sampleListPointers allocation instead of at the first logical row. This issue is fixed in versions 3.3.13 and 3.4.13.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | OpenEXR-devel | 2.2.0-12.el8_10.3 | ALSA-2026:82345 |
| AlmaLinux:8 | OpenEXR-libs | 2.2.0-12.el8_10.3 | ALSA-2026:82345 |
| AlmaLinux:10 | openexr | 3.1.10-8.el10_2.5 | ALSA-2026:84796 |
| AlmaLinux:10 | openexr-devel | 3.1.10-8.el10_2.5 | ALSA-2026:84796 |
| AlmaLinux:9 | openexr-devel | 3.1.1-3.el9_8.5 | ALSA-2026:86983 |
| AlmaLinux:10 | openexr-libs | 3.1.10-8.el10_2.5 | ALSA-2026:84796 |
| Alpine:v3.24 | openexr | 3.4.15-r0 | ALPINE-CVE-2026-59189 |
| Debian:12 | openexr | no fix listed | DEBIAN-CVE-2026-59189 |
| Debian:13 | openexr | no fix listed | DEBIAN-CVE-2026-59189 |
| Debian:14 | openexr | 3.4.14-0.1 | DEBIAN-CVE-2026-59189 |
| Rocky Linux:8 | OpenEXR | 0:2.2.0-12.el8_10.3 | RLSA-2026:82345 |
| Rocky Linux:10 | openexr | 0:3.1.10-8.el10_2.5 | RLSA-2026:84796 |
| Rocky Linux:9 | openexr | 0:3.1.1-3.el9_8.5 | RLSA-2026:86983 |
| Ubuntu:26.10 | openexr | no fix listed | UBUNTU-CVE-2026-59189 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| AcademySoftwareFoundation | openexr | < 3.2.11>= 3.3.0, < 3.3.13>= 3.4.0, < 3.4.14 |
Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
References
- https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-hwmv-39v6-739m x_refsource_CONFIRM
- https://github.com/AcademySoftwareFoundation/openexr/commit/37f03b6ed90f3dd9910f31de3a40f25f2bc2aca1 x_refsource_MISC
- https://github.com/AcademySoftwareFoundation/openexr/commit/55b7958ecb5ac32c427ff39c1e063f6f7bbee77c x_refsource_MISC
- https://github.com/AcademySoftwareFoundation/openexr/commit/aef02224ba282a802de65d16c49c1cdb82089dec x_refsource_MISC