CVE-2026-96545 Gimp: gimp: out-of-bounds heap read in the 4bpp tim image loader
An out-of-bounds heap read in GIMP's TIM image loader allows attackers to read adjacent heap memory or crash the application via a crafted image.
- 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-2026-96545?
CVE-2026-96545 is a medium-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
An out-of-bounds heap read flaw was found in GIMP's TIM image loader. When a user opens a crafted 4bpp TIM image that causes promotion to an RGBA layer, the file-tim plug-in allocates an undersized row buffer but processes it using the larger RGBA row size. This can copy adjacent heap contents into the decoded image and may crash the plug-in.
Weakness: CWE-125
Which versions are affected by CVE-2026-96545?
How do I fix CVE-2026-96545?
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-2026-96545 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-96545 exists.
Sources
Also known as DEBIAN-CVE-2026-96545, GHSA-4528-hvwj-6gx3, UBUNTU-CVE-2026-96545.