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 W*H*D size computation inside _load_pnm() that can…
Published: 2026-05-04 · CVSS: 6.1 · CVSS 3.1
CImg Library is a C++ library for image processing. Prior to commit 4ca26bc, there is an integer overflow vulnerability in the W*H*D size computation inside _load_pnm() that can bypass the memory allocation guard. A crafted PNM/PGM/PPM file with large dimension values causes the overflow to wrap around, allocating an undersized buffer and potentially triggering a heap buffer overflow. Any application using CImg to load untrusted image files is affected. This issue has been patched via commit 4ca26bc.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7