CVE-2026-66758 — Vulnerability intelligence
gimp — gimp
Published:
- CVSS
- 7.8
- CISA KEV
- Not listed; not proof of no exploitation
Original source text (not a translation)
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.