CVE-2026-41142
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, there is an integer overflow in ImageChannel::resize that leads to heap OOB write via OpenEXRUtil public API.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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, there is an integer overflow in ImageChannel::resize that leads to heap OOB write via OpenEXRUtil public API. This issue has been patched in versions 3.2.9, 3.3.11, and 3.4.11.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.44% probability · 37th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- openexr/openexr
- Source
- security-advisories@github.com
References
- https://github.com/AcademySoftwareFoundation/openexr/commit/0592ee539f33c122c90f09238579b902d838afb4Patch
- https://github.com/AcademySoftwareFoundation/openexr/pull/2367Issue Tracking, Patch
- https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-m25w-72cj-q6mgExploit, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:38498
- https://access.redhat.com/errata/RHSA-2026:38499
- https://access.redhat.com/errata/RHSA-2026:39024
- https://access.redhat.com/errata/RHSA-2026:39025
- https://access.redhat.com/errata/RHSA-2026:39026
- https://access.redhat.com/errata/RHSA-2026:39027
- https://access.redhat.com/security/cve/CVE-2026-41142
- https://bugzilla.redhat.com/show_bug.cgi?id=2467623
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41142.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.