CVE-2026-42146

Published: Mag 04, 2026 Last Modified: Mag 04, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,5
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: none
User Interaction: required
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high

Description

AI Translation Available

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.

789

Memory Allocation with Excessive Size Value

Draft
Abstraction: Variant Structure: Simple
Common Consequences
Security Scopes Affected:
Availability
Potential Impacts:
Dos: Resource Consumption (Memory)
Applicable Platforms
Languages: C, C++, Not Language-Specific
View CWE Details
https://github.com/GreycLab/CImg/commit/c3aacf5b96ac1e54b7a…
https://github.com/GreycLab/CImg/commit/c3aacf5b96ac1e54b7af1957c6737dbf3949f6d3
https://github.com/GreycLab/CImg/issues/477
https://github.com/GreycLab/CImg/issues/477
https://github.com/GreycLab/CImg/releases/tag/v.3.7.5
https://github.com/GreycLab/CImg/releases/tag/v.3.7.5
https://github.com/GreycLab/CImg/security/advisories/GHSA-g…
https://github.com/GreycLab/CImg/security/advisories/GHSA-g54r-qmgx-c6fv