CVE-2026-96546 Gimp: gimp: one-byte out-of-bounds heap read in the uncompressed dds loader
An attacker can cause a denial of service by tricking a user into opening a malicious uncompressed DDS image 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-2026-96546?
CVE-2026-96546 is a low-severity memory corruption vulnerability in Red Hat Enterprise Linux 10, published on 23 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 one-byte out-of-bounds heap read flaw was found in GIMP's uncompressed DDS image loader. When a user opens an uncompressed DDS image, the file-dds plug-in performs an unconditional one-byte look-ahead after processing the final pixel. This may cause the plug-in to crash if the byte immediately following the pixel buffer is inaccessible; no information disclosure or code execution has been demonstrated.
Weakness: CWE-125
Which versions are affected by CVE-2026-96546?
How do I fix CVE-2026-96546?
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-2026-96546 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-96546 exists.
Sources
Also known as DEBIAN-CVE-2026-96546, GHSA-fffc-82x4-q8r3, UBUNTU-CVE-2026-96546.