CVE-2026-82324 Gimp: heap out-of-bounds reads in iff/ilbm loader from ham row size mismatch and nplanes=0
Attackers can cause crashes or leak heap memory by tricking users into opening malicious IFF/ILBM images 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-2026-82324?
CVE-2026-82324 is a medium-severity memory corruption vulnerability in Gimp Gimp, published on 28 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-iff (IFF/ILBM) plugin in GIMP. When processing a specially crafted IFF/ILBM image file, the plugin does not properly validate the HAM row size and improperly handles cases where the number of color planes (nPlanes) is zero. This causes a row size mismatch that bypasses memory bounds checking, resulting in heap out-of-bounds reads. This issue can result in an application crash, leading to a denial of service or a limited information disclosure of heap memory contents.
Weakness: CWE-125
Which versions are affected by CVE-2026-82324?
It affects 2 products.
Products include Gimp Gimp, Redhat Enterprise Linux.
How do I fix CVE-2026-82324?
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-2026-82324 being exploited?
There is no known exploitation of CVE-2026-82324 in the wild and no public exploit code.
Other vulnerabilities in Gimp Gimp
Sources
Also known as DEBIAN-CVE-2026-82324, GHSA-g4vr-wmrr-2qfv, UBUNTU-CVE-2026-82324.