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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-42217 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  GitHub, Inc.
CVSS-B 6.3 MEDIUM
Vector:  CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/AcademySoftwareFoundation/openexr/commit/21eaa33bcbbb0c83a5fc42f6b6d65b70a996e63c GitHub, Inc.
https://github.com/AcademySoftwareFoundation/openexr/pull/2378 GitHub, Inc.
https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-3c67-4wwp-w52m GitHub, Inc.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-190 Integer Overflow or Wraparound GitHub, Inc.  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-42217
NVD Published Date:
05/07/2026
NVD Last Modified:
05/07/2026
Source:
GitHub, Inc.