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CVE-2026-42146 Detail

Description

CImg Library is a C++ library for image processing. Prior to commit c3aacf5, the nb_colors field read from the BMP file header is used directly to compute an allocation size without validating it against the remaining file size. A crafted BMP file with a large nb_colors value triggers an out-of-memory condition, crashing any application that uses CImg to load untrusted BMP files. This issue has been patched via commit c3aacf5.


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.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/GreycLab/CImg/commit/c3aacf5b96ac1e54b7af1957c6737dbf3949f6d3 GitHub, Inc.
https://github.com/GreycLab/CImg/issues/477 GitHub, Inc.
https://github.com/GreycLab/CImg/releases/tag/v.3.7.5 GitHub, Inc.
https://github.com/GreycLab/CImg/security/advisories/GHSA-g54r-qmgx-c6fv GitHub, Inc.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-789 Memory Allocation with Excessive Size Value GitHub, Inc.  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-42146
NVD Published Date:
05/04/2026
NVD Last Modified:
05/04/2026
Source:
GitHub, Inc.