CVE-2026-106063 Gimp: gimp: heap buffer overflow in dicom export on oversized image dimensions
An attacker can trigger a heap buffer overflow in GIMP's DICOM export by providing oversized image dimensions, potentially leading to code execution or application crash.
- 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-2026-106063?
CVE-2026-106063 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, published on 6 Oct 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 heap-based buffer overflow was found in GIMP’s DICOM export plug-in. When exporting an image with extremely large width and height, the export path allocates a buffer using a 32-bit width * height (and bytes-per-pixel) product that can overflow. GEGL then writes the full uncompressed extent into the undersized buffer, after integer overflow in the allocation size
Weakness: CWE-119
Which versions are affected by CVE-2026-106063?
How do I fix CVE-2026-106063?
Apply the vendor's patch.
Is CVE-2026-106063 being exploited?
There is no known exploitation of CVE-2026-106063 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-106063, GHSA-j336-2pgh-rf7p, UBUNTU-CVE-2026-106063.