CVE-2026-40915

A flaw was found in GIMP. A remote attacker could exploit an integer overflow vulnerability in the FITS image loader by providing a specially crafted FITS file. This integer overflow leads to a zero-byte memory allocation, which is then subjected to a heap buffer overflow when processing pixel data. Successful exploitation could result in a denial of service (DoS) or potentially arbitrary code execution.

Moderate. This flaw in GIMP's FITS image loader could lead to a denial of service or arbitrary code execution when processing a specially crafted FITS file. Exploitation requires user interaction, as a malicious file must be opened by the application. Red Hat Enterprise Linux systems are affected if GIMP is installed and used to open untrusted FITS image files.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Users should avoid opening untrusted FITS image files with GIMP. If GIMP is not required, consider removing the gimp package to eliminate the attack surface. This can be done using the system's package manager, for example: sudo dnf remove gimp. Removing GIMP may impact other applications that depend on it.