openexr: OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture...
CVE-2026-59186 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2026-59186, released August 28, 2026. It is not reported as exploited. Patch Radar priority: High.
OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions before 3.2.11, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13, a crafted tiled EXR can trigger a heap out-of-bounds write on 32-bit/ILP32 builds when read through the public TiledRgbaInputFile RGBA API. The file uses a small 40x40 dataWindow but a 65537x65537 tile size. On ILP32, the Array2D<Rgba> tile-conversion buffer size calculation overflows, allocates a much smaller heap buffer, and tile decode writes past that allocation. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| OpenEXR · rocky 8 | 0:2.2.0-12.el8_10.3 | RLSA-2026:82345 | Nov 7, 2026 |
| OpenEXR-devel · RHEL 8 | 0:2.2.0-12.el8_10.3 | RHSA-2026:82345 | Oct 16, 2026 |
| OpenEXR-devel · almalinux 8 | 2.2.0-12.el8_10.3 | ALSA-2026:82345 | Nov 7, 2026 |
| OpenEXR-devel · ol 8 | 0:2.2.0-12.el8_10.3 | ELSA-2026-82345 | Nov 7, 2026 |
| OpenEXR-libs · RHEL 8 | 0:2.2.0-12.el8_10.3 | RHSA-2026:82345 | Oct 16, 2026 |
| OpenEXR-libs · almalinux 8 | 2.2.0-12.el8_10.3 | ALSA-2026:82345 | Nov 7, 2026 |
| OpenEXR-libs · ol 8 | 0:2.2.0-12.el8_10.3 | ELSA-2026-82345 | Nov 7, 2026 |
| openexr · Debian 14 | 3.4.14-0.1 | DEBIAN-CVE-2026-59186 | Aug 28, 2026 |
| openexr · opensuse-leap 16.0 | 3.2.2-160000.10.1 | OPENSUSE-SU-2026:21737-1 | Sep 2, 2026 |
| openexr · sles 15.6 | 2.2.1-150000.3.55.1 | SUSE-SU-2026:4003-1 | Sep 7, 2026 |
| openexr · sles 15.7 | 2.2.1-150000.3.55.1 | SUSE-SU-2026:4003-1 | Sep 7, 2026 |
| openexr · sles 16.0 | 3.2.2-160000.10.1 | SUSE-SU-2026:23604-1 | Sep 2, 2026 |
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