Home

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.

PUBLISHED Reserved 2026-04-25 | Published 2026-05-07 | Updated 2026-05-07 | Assigner GitHub_M




MEDIUM: 6.3CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Problem types

CWE-190: Integer Overflow or Wraparound

Product status

>= 3.0.0, < 3.2.9
affected

>= 3.3.0, < 3.3.11
affected

>= 3.4.0, < 3.4.11
affected

References

github.com/...penexr/security/advisories/GHSA-3c67-4wwp-w52m

github.com/AcademySoftwareFoundation/openexr/pull/2378

github.com/...ommit/21eaa33bcbbb0c83a5fc42f6b6d65b70a996e63c

cve.org (CVE-2026-42217)

nvd.nist.gov (CVE-2026-42217)

Download JSON