OpenEXR: Out-of-bounds read in `IDManifest::init()` during prefix expansion (AcademySoftwareFoundation openexr)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.46 % · percentile 40 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Modified
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, 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.
Weaknesses (CWE)
References
- https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-65j8-95g9-jgj4
- https://access.redhat.com/security/cve/CVE-2026-42216
- https://bugzilla.redhat.com/show_bug.cgi?id=2467633
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42216.json
- https://access.redhat.com/errata/RHSA-2026:39024
- https://access.redhat.com/errata/RHSA-2026:38499
- https://access.redhat.com/errata/RHSA-2026:39027
- https://access.redhat.com/errata/RHSA-2026:39026
- https://access.redhat.com/errata/RHSA-2026:39025
- https://access.redhat.com/errata/RHSA-2026:38498
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 4.0 | HIGH 8.8 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N | GitHub_M |
| CVSS 3.1 | HIGH 8.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H | redhat-SADP |
| CVSS 4.0 | HIGH 8.8 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD · security-advisories@github.com (Secondary) |
| CVSS 3.1 | CRITICAL 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | HIGH 8.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H | NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
European references
- ENISA EUVD · EUVD-2026-28298
- GCVE · GCVE-0-2026-42216
Affected configurations (NVD CPE)
cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*≥ 3.0.0 < 3.2.9cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*≥ 3.3.0 < 3.3.11cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*≥ 3.4.0 < 3.4.11
Affected products
| Product | Versions |
|---|---|
| AcademySoftwareFoundation · openexr | affected >= 3.0.0, < 3.2.9 ; affected >= 3.3.0, < 3.3.11 ; affected >= 3.4.0, < 3.4.11 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |