CVEvulnerability
CVE-2026-66758
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2026-07-27
- Last modified
- 2026-10-12
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-190
Description
A flaw was found in the file-fits plugin in GIMP. When processing a FITS image file, the plugin calculates memory allocation sizes using signed 32-bit integers for width and height. If a crafted file sets both values to large values, their product exceeds 2^31 and overflows, resulting in an undersized heap-based buffer allocation. This integer overflow issue results in a heap-based buffer overflow when cfitsio subsequently writes a full row of pixels in the buffer, causing memory corruption, potentially leading to arbitrary code execution or a denial of service.
Affected configurations
• gimp gimp 3.0.8
• gimp gimp 3.2.4
• redhat enterprise linux 6.0
• redhat enterprise linux 7.0
• redhat enterprise linux 8.0
• redhat enterprise linux 9.0
Related
Weakness · CWE (1)
- CWE-190 Integer Overflow or Wraparound weakness
References
- https://access.redhat.com/errata/RHSA-2026:50817 Issue Tracking
- https://access.redhat.com/errata/RHSA-2026:62507 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:73768 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:80509 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-66758 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2507475 Issue Tracking, Vendor Advisory
- https://gitlab.gnome.org/GNOME/gimp/-/issues/16528 Exploit, Issue Tracking, Vendor Advisory