CVE-2026-111155 libTiMidity through 0.2.8 Out-of-Bounds Read via SoundFont Loader sndfont.c
Attackers can cause a crash or read heap memory by supplying a crafted SoundFont file to the libTiMidity library.
- 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-2026-111155?
CVE-2026-111155 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 a heap out-of-bounds read vulnerability in the SoundFont loader in src/sndfont.c that uses unvalidated sampleId and instrument generator values as table indices. Attackers can supply a crafted .sf2 file loaded through mid_set_soundfont() to read heap memory out of bounds and crash the application.
Weakness: CWE-125
Which versions are affected by CVE-2026-111155?
How do I fix CVE-2026-111155?
No fix has been published for CVE-2026-111155 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-2026-111155 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111155 exists.
Sources
Also known as DEBIAN-CVE-2026-111155, GHSA-g425-c86q-2452, UBUNTU-CVE-2026-111155.