CVE-2026-66757

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.

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Produits concernés

• GNOME GIMP
• Red Hat Enterprise Linux 6
• Red Hat Enterprise Linux 7
• Red Hat Enterprise Linux 8
• Red Hat Enterprise Linux 9
• Gimp gimp
• Redhat enterprise linux

Scores CVSS

Faiblesses (CWE)

• CWE-190

Références

• https://access.redhat.com/security/cve/CVE-2026-66757 Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2507465 Issue TrackingVendor Advisory
• https://gitlab.gnome.org/GNOME/gimp/-/work_items/16494 ExploitIssue TrackingVendor Advisory
• https://gitlab.gnome.org/GNOME/gimp/-/work_items/16494 ExploitIssue TrackingVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories