CVE-2026-108577 Konstanty Bialkowski libmodplug ABC Music Format load_abc.cpp abc_add_gchord resource consumption
Remote attackers can cause resource consumption and denial of service in libmodplug via a crafted ABC Music Format file.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-108577?
CVE-2026-108577 is a medium-severity denial of service vulnerability in Konstanty Bialkowski libmodplug, published on 11 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A vulnerability was determined in Konstanty Bialkowski libmodplug up to 0.8.9.1. This issue affects the function abc_add_gchord of the file src/load_abc.cpp of the component ABC Music Format Parser. This manipulation causes resource consumption. The attack may be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-108577?
How do I fix CVE-2026-108577?
No fix published yet.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-108577 being exploited?
There is no known exploitation of CVE-2026-108577 in the wild and no public exploit code.
Sources
Also known as AZL-108056, DEBIAN-CVE-2026-108577, ECHO-5576-aad2-1138, GHSA-252h-2265-gp6c, UBUNTU-CVE-2026-108577.