CVE-2026-42146 — CImg Library: Uncontrolled memory allocation via nb_colors field in _load_bmp
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 wit…
Published: 2026-05-04 · CVSS: 5.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7