CVE-2026-111156 libTiMidity through 0.2.8 Out-of-Bounds Access via SoundFont Preset Header
Attackers can execute arbitrary code or crash the application by providing a maliciously crafted SoundFont file to libTiMidity.
- 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-2026-111156?
CVE-2026-111156 is a medium-severity memory corruption vulnerability in sezero libtimidity, 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
libTiMidity through 0.2.8 contains an out-of-bounds access vulnerability in init_soundfont() in src/sndfont.c that allows attackers to corrupt memory by supplying unvalidated SF2 preset header bank and preset values. Attackers can craft a .sf2 file whose bank or preset indexes past the 128-entry tonebank or drumset arrays, causing heap memory reads, writes, and application crashes.
Weakness: CWE-787
Which versions are affected by CVE-2026-111156?
How do I fix CVE-2026-111156?
No fix has been published for CVE-2026-111156 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-2026-111156 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111156 exists.
Sources
Also known as DEBIAN-CVE-2026-111156, GHSA-c4vh-j2xp-73q4, UBUNTU-CVE-2026-111156.