Critical severity9.1NVD Advisory· Published May 7, 2026· Updated May 8, 2026
CVE-2026-42216
CVE-2026-42216
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
20- osv-coords19 versionspkg:apk/chainguard/openexrpkg:apk/chainguard/openexr-devpkg:apk/chainguard/openexr-docpkg:apk/chainguard/openexr-libiexpkg:apk/chainguard/openexr-libilmthreadpkg:apk/chainguard/openexr-libopenexrpkg:apk/chainguard/openexr-libopenexrcorepkg:apk/chainguard/openexr-libopenexrutilpkg:apk/chainguard/openexr-staticpkg:apk/wolfi/openexrpkg:apk/wolfi/openexr-devpkg:apk/wolfi/openexr-docpkg:apk/wolfi/openexr-libiexpkg:apk/wolfi/openexr-libilmthreadpkg:apk/wolfi/openexr-libopenexrpkg:apk/wolfi/openexr-libopenexrcorepkg:apk/wolfi/openexr-libopenexrutilpkg:apk/wolfi/openexr-staticpkg:rpm/opensuse/openexr&distro=openSUSE%20Tumbleweed
< 3.4.10-r0+ 18 more
- (no CPE)range: < 3.4.10-r0
- (no CPE)range: < 3.4.11-r0
- (no CPE)range: < 3.4.11-r0
- (no CPE)range: < 3.4.11-r0
- (no CPE)range: < 3.4.11-r0
- (no CPE)range: < 3.4.10-r0
- (no CPE)range: < 3.4.10-r0
- (no CPE)range: < 3.4.10-r0
- (no CPE)range: < 3.4.11-r0
- (no CPE)range: < 3.4.10-r0
- (no CPE)range: < 3.4.11-r0
- (no CPE)range: < 3.4.11-r0
- (no CPE)range: < 3.4.11-r0
- (no CPE)range: < 3.4.11-r0
- (no CPE)range: < 3.4.10-r0
- (no CPE)range: < 3.4.10-r0
- (no CPE)range: < 3.4.10-r0
- (no CPE)range: < 3.4.11-r0
- (no CPE)range: < 3.4.11-1.1
Patches
Vulnerability mechanics
References
1- github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-65j8-95g9-jgj4nvdExploitVendor AdvisoryMitigation
News mentions
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