CVE-2026-108094 Mutter: mutter: client-triggered use-after-free in wayland color-management icc image description path
A local attacker can trigger a use-after-free in Mutter via a malicious Wayland client, potentially causing a crash or arbitrary code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-108094?
CVE-2026-108094 is a high-severity use after free vulnerability in Red Hat Enterprise Linux 10, published on 12 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A use-after-free flaw was found in mutter in the Wayland color-management ICC image-description path. A local attacker who can run a malicious Wayland client can destroy a wp_image_description_v1 resource while an asynchronous ICC file read is still in progress. When the read completes, the compositor uses the freed wl_resource, writes into freed memory, and frees a pointer derived from that memory. This can crash the GNOME session and may allow arbitrary code execution within the compositor process.
Weakness: CWE-416
Which versions are affected by CVE-2026-108094?
How do I fix CVE-2026-108094?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-108094 being exploited?
There is no known exploitation of CVE-2026-108094 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-108094, GHSA-g8f9-h8x6-9c3x, UBUNTU-CVE-2026-108094.