CVE-2026-111275 nifti_clib through 3.0.1 Stack Out-of-Bounds Access via nifti_convert_n2hdr2nim
Attackers can cause stack memory corruption or crashes in applications using nifti_clib by supplying a crafted NIfTI-2 header file.
- 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
- None listed
What is CVE-2026-111275?
CVE-2026-111275 is a medium-severity memory corruption vulnerability in NIFTI-Imaging nifti_clib, published on 15 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
nifti_clib through 3.0.1 contains a stack-based out-of-bounds read and write vulnerability in nifti_convert_n2hdr2nim() because the NIfTI-2 dim[0] value is never range-checked. Attackers can supply a crafted 540-byte NIfTI-2 header read via nifti_image_read() to crash applications or corrupt stack memory.
Weakness: CWE-787
Which versions are affected by CVE-2026-111275?
How do I fix CVE-2026-111275?
No fix has been published for CVE-2026-111275 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-111275 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111275 exists.
Sources
Also known as GHSA-jj37-jg79-p9qw, UBUNTU-CVE-2026-111275.