CVE-2026-40915 Gimp: gimp: heap buffer overflow due to integer overflow in fits image loader
A remote attacker can cause a heap buffer overflow and potential code execution in GIMP by providing a specially crafted FITS image file.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-40915?
CVE-2026-40915 is a medium-severity vulnerability in Gimp Gimp, published on 15 Apr 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-190
Which versions are affected by CVE-2026-40915?
It affects 2 products.
Products include Gimp Gimp, Redhat Enterprise Linux.
How do I fix CVE-2026-40915?
Apply the vendor's patch.
Is CVE-2026-40915 being exploited?
There is no known exploitation of CVE-2026-40915 in the wild and no public exploit code.
Other vulnerabilities in Gimp Gimp
Sources
Also known as DEBIAN-CVE-2026-40915, GHSA-4f9g-vrx9-f8cq, UBUNTU-CVE-2026-40915.