CVE-2026-66757

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-66757
https://bugzilla.redhat.com/show_bug.cgi?id=2507465
https://gitlab.gnome.org/GNOME/gimp/-/work_items/16494
https://gitlab.gnome.org/GNOME/gimp/-/work_items/16494

Configurations

No configuration.

History

27 Jul 2026, 21:17

Type	Values Removed	Values Added
References	~~() https://gitlab.gnome.org/GNOME/gimp/-/work_items/16494 -~~	() https://gitlab.gnome.org/GNOME/gimp/-/work_items/16494 -

27 Jul 2026, 19:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-27 19:17

Updated : 2026-07-31 16:17

NVD link : CVE-2026-66757

Mitre link : CVE-2026-66757

CVE.ORG link : CVE-2026-66757

JSON object : View

Products Affected

No product.

CWE

CWE-190

Integer Overflow or Wraparound

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