CVE-2026-59984OpenEXR: Scratch buffer overflow decoding B44-compressed InputFile on ILP32
Updated under an hour ago ()
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It affects AcademySoftwareFoundation openexr. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. OpenEXR versions 3.1.0 through 3.2.10, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13 are vulnerable on ILP32 builds to an out-of-bounds write. When a crafted B44-compressed scanline EXR causes the logical scratch size to truncate before allocation and uncompress_b44_impl() writes using the attacker-controlled channel width, allowing denial of service and memory corruption. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.
- CVSS
- 5.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Aug 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
AcademySoftwareFoundation openexr academysoftwarefoundation:openexr (from the name) | from 3.1.0, < 3.2.11; from 3.3.0, < 3.3.13; from 3.4.0, < 3.4.14 | CNA record |
References
- https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-92pq-9qv4-g68qx-refsource-confirm
- https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.2.11x-refsource-misc
- https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.3.13x-refsource-misc
- https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.14x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.