CVE-2026-105838 libmikmod before 3.3.14 Heap Out-of-Bounds Read via IT Module Loader
Attackers can read adjacent heap memory or crash applications by supplying a crafted Impulse Tracker module with oversized patterns to libmikmod.
- 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-2026-105838?
CVE-2026-105838 is a medium-severity memory corruption vulnerability in sezero libmikmod, 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
libmikmod before 3.3.14 contains a heap out-of-bounds read vulnerability in the Impulse Tracker loader load_it.c that allows attackers to read adjacent heap memory via oversized patterns. Attackers can supply a crafted IT module with more than 200 pattern rows, causing IT_ConvertTrack() to read past the itpat buffer and crash applications.
Weakness: CWE-125
Which versions are affected by CVE-2026-105838?
How do I fix CVE-2026-105838?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-105838 being exploited?
There is no known exploitation of CVE-2026-105838 in the wild and no public exploit code.
Sources
Also known as AZL-106661, DEBIAN-CVE-2026-105838, GHSA-xrff-r355-6xmr, UBUNTU-CVE-2026-105838.