Critical severity9.8NVD Advisory· Published May 7, 2026· Updated May 8, 2026
CVE-2026-42217
CVE-2026-42217
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, readVariableLengthInteger() decodes a variable-length integer from untrusted EXR input without bounding the shift count. After enough continuation bytes, the code executes a left shift by 70 on a 64-bit value, which is undefined behavior. 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
3- github.com/AcademySoftwareFoundation/openexr/commit/21eaa33bcbbb0c83a5fc42f6b6d65b70a996e63cnvdPatch
- github.com/AcademySoftwareFoundation/openexr/pull/2378nvdIssue TrackingPatch
- github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-3c67-4wwp-w52mnvdExploitVendor AdvisoryMitigation
News mentions
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