CVE-2026-66757

Medium

Description

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.

SeverityMedium
CVSS5.5
Exploit probability—
ProductGimp
PublishedJul 27, 2026
First seenJul 27, 2026

How to fix

Affected products

ProductAffected versionsFixed in
gimp gimp3.2.6—
redhat enterprise_linux7.0, 8.0, 9.0—

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CVE-2026-66757 · Gimp · Dark Radar