CVE-2026-66757 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-66757MEDIUM

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

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   N   R  U  N  N  H    5.5   .0020    9.9     —

AFFECTED
  Product                     Versions     Fixed
  GIMP                        unspecified  —
  Red Hat Enterprise Linux 6  unspecified  —
  Red Hat Enterprise Linux 7  unspecified  —
  Red Hat Enterprise Linux 8  unspecified  —
  Red Hat Enterprise Linux 9  unspecified  —

TIMELINE
  Jul 27  EXPLOIT PUBLISHED — CVE-2026-66757 (GNOME GIMP). Public exploit reference added.
  Jul 27  Reserved by redhat
  Jul 27  Published (CNA: redhat)
  Aug 10  EXPLOIT PUBLISHED — CVE-2026-66757 (GNOME GIMP). Public exploit reference added.

CWE-190 · CNA: redhat · CVSS v3.1 · 3 references · NVD status: Analyzed

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.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
July 27, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-66757 (GNOME GIMP). Public exploit reference added.
July 27, 2026	Reserved	Reserved by redhat
July 27, 2026	Published	Published (CNA: redhat)
August 10, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-66757 (GNOME GIMP). Public exploit reference added.

Affected

Affected products and packages — 5 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
GNOME	GIMP	—	—	—
Red Hat	Red Hat Enterprise Linux 6	—	—	—
Red Hat	Red Hat Enterprise Linux 7	—	—	—
Red Hat	Red Hat Enterprise Linux 8	—	—	—
Red Hat	Red Hat Enterprise Linux 9	—	—	—

Weaknesses

CWE-190

References (3)

https://access.redhat.com/security/cve/CVE-2026-66757 [Vendor Advisory]
https://bugzilla.redhat.com/show_bug.cgi?id=2507465 [Issue Tracking, Vendor Advisory]
https://gitlab.gnome.org/GNOME/gimp/-/work_items/16494 [Exploit, Issue Tracking, Vendor Advisory]

Authoritative record: CVE-2026-66757 at cve.org

Vendors: gnome · red hat

Weaknesses: CWE-190

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-66757 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.