CVE-2026-66757: Gimp

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

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 multiplication ysize * zsize overflows the standard 32-bit int boundary before being passed to calloc. This integer overflow issue results in undefined behavior, aborting the plugin and causing a denial of service.

Affected products

• Gimp Gimp: version 3.2.6 only
• Red Hat Enterprise Linux: version 7.0 only; version 8.0 only; version 9.0 only

Published 2026-07-27. Last modified 2026-08-10.