CVE-2026-90947 Gimp: gimp: out-of-bounds write in lighting effects plugin via crafted preset file
An attacker can achieve arbitrary code execution or cause a crash by tricking a user into opening a malicious lighting preset file in GIMP.
- 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-2026-90947?
CVE-2026-90947 is a high-severity memory corruption vulnerability in Red Hat Enterprise Linux 6, published on 14 Sep 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. When processing a specially crafted lighting preset file, the Lighting Effects filter does not properly validate the number of light sources. This can lead to an out-of-bounds write, corrupting memory. An attacker could exploit this by convincing a user to open a malicious preset file, potentially causing a crash or enabling arbitrary code execution.
Weakness: CWE-787
Which versions are affected by CVE-2026-90947?
How do I fix CVE-2026-90947?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-90947 being exploited?
There is no known exploitation of CVE-2026-90947 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-90947, GHSA-pcjr-j975-j4c4, UBUNTU-CVE-2026-90947.