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Vulnerabilities CVE-2026-66757

CVE-2026-66757

Medium
Open
TLP:CLEAR

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

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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.

Details

CVSS Score
5.5
EPSS Score
0.20%

9.8th percentile

CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Confidence
90%
Published
Jul 27, 2026
Last Modified
Jul 27, 2026
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