CVE-2026-66757 Gimp: signed integer overflow in file-sgi (sgi-lib) causes the plugin to crash on rle sgi images

A flaw was found in the file-sgi plugin in GIMP. When processing an RLE-compressed SGI image, the plugin allocates memory for a row table. The image header dimensions ysize and zsize are read as 16-bit unsigned integers. If a crafted file sets both dimensions to their maximum value 65535, the...

CVE-2026-66757

The CVE-2026-66757 issue affects the GIMP file-sgi plugin. Processing an RLE SGI image can trigger a signed integer overflow when reading header dimensions (ysize and zsize). If both are set to 65535, ysize * zsize overflows a 32-bit int prior to calloc, causing undefined behavior that aborts the...