CVE-2026-42144 CImg Library: Integer overflow in PNM size check bypasses memory guard (_load_pnm)

CImg Library is a C++ library for image processing. Prior to commit 4ca26bc, there is an integer overflow vulnerability in the WHD size computation inside loadpnm that can bypass the memory allocation guard. A crafted PNM/PGM/PPM file with large dimension values causes the overflow to wrap around...

CVE-2026-42144

This CVE affects the CImg Library: an integer overflow in the WH D size computation inside _load_pnm() can bypass the memory allocation guard, leading to a potentially undersized heap buffer and heap buffer overflow when loading crafted PNM/PGM/PPM images. The issue is mitigated by the patch intr...