CVE-2026-42217

Name
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.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
Patch https://github.com/AcademySoftwareFoundation/openexr/commit/21eaa33bcbbb0c83a5fc42f6b6d65b70a996e63c
Issue Tracking https://github.com/AcademySoftwareFoundation/openexr/pull/2378
Exploit https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-3c67-4wwp-w52m

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:* openexr >= 3.0.0 < 3.2.9
cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:* openexr >= 3.3.0 < 3.3.11
cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:* openexr >= 3.4.0 < 3.4.11

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
openexr edge-community 3.4.11-r0 Théo Zanchi <theo.zanchi@gmail.com> fixed
openexr edge-community 3.4.10-r0 Théo Zanchi <theo.zanchi@gmail.com> possibly vulnerable
openexr edge-community 3.4.4-r0 Théo Zanchi <theo.zanchi@gmail.com> possibly vulnerable
openexr edge-community 3.4.2-r0 Théo Zanchi <theo.zanchi@gmail.com> possibly vulnerable
openexr edge-community 3.3.2-r0 Mark Riedesel <mark+alpine@klowner.com> possibly vulnerable
openexr edge-community 3.1.13-r2 Mark Riedesel <mark+alpine@klowner.com> possibly vulnerable
openexr edge-community 3.1.13-r1 Mark Riedesel <mark+alpine@klowner.com> possibly vulnerable
openexr edge-community 3.1.13-r0 Mark Riedesel <mark+alpine@klowner.com> possibly vulnerable
openexr edge-community 3.1.12-r0 Mark Riedesel <mark+alpine@klowner.com> possibly vulnerable
openexr edge-community 3.1.4-r0 Mark Riedesel <mark+alpine@klowner.com> possibly vulnerable
openexr edge-community 3.1.1-r0 Mark Riedesel <mark+alpine@klowner.com> possibly vulnerable
openexr 3.23-community 3.4.2-r0 Théo Zanchi <theo.zanchi@gmail.com> possibly vulnerable