CVE-2026-80101 Gimp: multiple heap out-of-bounds reads in xwd loader from unrelated width and bytes-per-line validation
A heap out-of-bounds read in GIMP's XWD loader allows attackers to cause crashes or disclose heap memory via crafted images.
- 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-2026-80101?
CVE-2026-80101 is a medium-severity memory corruption vulnerability in Gimp Gimp, published on 25 Aug 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 the file-xwd plugin in GIMP. When processing a specially crafted XWD image file, the plugin validates the image width and bytes-per-line parameters independently rather than ensuring their combined values are consistent with the allocated buffer size. This incorrect validation leads to improper bounds checking, causing a heap out-of-bounds read. This issue can result in an application crash, leading to a denial of service or a limited information disclosure of heap memory contents into the produced image.
Weakness: CWE-125
Which versions are affected by CVE-2026-80101?
It affects 2 products.
Products include Gimp Gimp, Redhat Enterprise Linux.
How do I fix CVE-2026-80101?
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-2026-80101 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-80101 exists.
Other vulnerabilities in Gimp Gimp
Sources
Also known as DEBIAN-CVE-2026-80101, GHSA-r338-8qhf-wvrr, UBUNTU-CVE-2026-80101.