openexr: OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for t...
CVE-2026-42216 is fixed in 6 products on 1 platform, first by RHSA-2026:39024, released May 7, 2026. It is not reported as exploited. Patch Radar priority: Urgent.
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From versions 3.0.0 to before 3.2.9, 3.3.0 to before 3.3.11, and 3.4.0 to before 3.4.11, IDManifest::init() reconstructs strings from a prefix-compressed representation. If the previous string is longer than 255 bytes, the next string is expected to begin with a 2-byte prefix length. The code reads stringList[i][0] and stringList[i][1] without checking that the current string has at least two bytes. This issue has been patched in versions 3.2.9, 3.3.11, and 3.4.11.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| openexr · Debian 14 | 3.4.14-0.1 | DEBIAN-CVE-2026-42216 | May 7, 2026 |
| openexr · RHEL 10 | 3.1.10-8.el10_0.3 | RHSA-2026:39024 | May 7, 2026 |
| openexr · RHEL 9 | 0:3.1.1-3.el9_8.3 | RHSA-2026:38498 | Jul 13, 2026 |
| openexr · almalinux 10 | 3.1.10-8.el10_2.3 | ALSA-2026:38499 | Jul 13, 2026 |
| openexr · almalinux 9 | 3.1.1-3.el9_8.3 | ALSA-2026:38498 | Jul 13, 2026 |
| openexr · amzn 2023 | 3.1.5-1.amzn2023.0.11 | ALAS2023-2026-1713 | May 25, 2026 |
| openexr · ol 10 | 0:3.1.10-8.el10_2.3 | ELSA-2026-38499 | Jul 16, 2026 |
| openexr · ol 9 | 0:3.1.1-3.el9_8.3 | ELSA-2026-38498 | Jul 13, 2026 |
| openexr · rocky 10 | 0:3.1.10-8.el10_2.3 | RLSA-2026:38499 | Jul 14, 2026 |
| openexr · rocky 9 | 0:3.1.1-3.el9_8.3 | RLSA-2026:38498 | Jul 14, 2026 |
| openexr-debuginfo · amzn 2023 | 3.1.5-1.amzn2023.0.11 | ALAS2023-2026-1713 | May 25, 2026 |
| openexr-debugsource · amzn 2023 | 3.1.5-1.amzn2023.0.11 | ALAS2023-2026-1713 | May 25, 2026 |
| openexr-devel · RHEL 9 | 0:3.1.1-3.el9_8.3 | RHSA-2026:38498 | Jul 13, 2026 |
| openexr-devel · almalinux 10 | 3.1.10-8.el10_2.3 | ALSA-2026:38499 | Jul 13, 2026 |
| openexr-devel · almalinux 9 | 3.1.1-3.el9_8.3 | ALSA-2026:38498 | Jul 13, 2026 |
| openexr-devel · amzn 2023 | 3.1.5-1.amzn2023.0.11 | ALAS2023-2026-1713 | May 25, 2026 |
| openexr-devel · ol 10 | 0:3.1.10-8.el10_2.3 | ELSA-2026-38499 | Jul 16, 2026 |
| openexr-devel · ol 9 | 0:3.1.1-3.el9_8.3 | ELSA-2026-38498 | Jul 13, 2026 |
| openexr-libs · RHEL 9 | 0:3.1.1-3.el9_8.3 | RHSA-2026:38498 | Jul 13, 2026 |
| openexr-libs · almalinux 10 | 3.1.10-8.el10_2.3 | ALSA-2026:38499 | Jul 13, 2026 |
| openexr-libs · almalinux 9 | 3.1.1-3.el9_8.3 | ALSA-2026:38498 | Jul 13, 2026 |
| openexr-libs · amzn 2023 | 3.1.5-1.amzn2023.0.11 | ALAS2023-2026-1713 | May 25, 2026 |
| openexr-libs · ol 10 | 0:3.1.10-8.el10_2.3 | ELSA-2026-38499 | Jul 16, 2026 |
| openexr-libs · ol 9 | 0:3.1.1-3.el9_8.3 | ELSA-2026-38498 | Jul 13, 2026 |
| openexr-libs-debuginfo · amzn 2023 | 3.1.5-1.amzn2023.0.11 | ALAS2023-2026-1713 | May 25, 2026 |
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