CVEvulnerability
CVE-2026-42216
8.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2026-05-07
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 8.8 HIGH — 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
- CVSS 3.1 ([email protected])
- 9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
- 8.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
- Weaknesses
- CWE-125, CWE-130
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.
Affected configurations
• openexr openexr (>= 3.0.0 < 3.2.9)
• openexr openexr (>= 3.3.0 < 3.3.11)
• openexr openexr (>= 3.4.0 < 3.4.11)
Related
References
- https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-65j8-95g9-jgj4 Exploit, Mitigation, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:38498 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:38499 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:39024 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:39025 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:39026 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:39027 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-42216 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2467633 bugzilla.redhat.com
- https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-65j8-95g9-jgj4 Exploit, Mitigation, Vendor Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42216.json security.access.redhat.com