CVE-2026-96675 alsa-lib through 1.2.16.1 Denial of Service via pcm_multi
Attackers can cause a denial of service in applications using alsa-lib by providing a malicious configuration file that triggers an assertion failure.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-96675?
CVE-2026-96675 is a medium-severity denial of service vulnerability in alsa-lib, published on 23 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
alsa-lib through 1.2.16.1 contains a denial of service vulnerability in the multi PCM plugin that fails to validate sparse binding indices before array access. Attackers can supply a malicious ALSA configuration file with sparse bindings to trigger an out-of-bounds array read and assertion failure, causing the application to abort.
Weakness: CWE-129
Which versions are affected by CVE-2026-96675?
How do I fix CVE-2026-96675?
Apply the vendor's patch.
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-2026-96675 being exploited?
There is no known exploitation of CVE-2026-96675 in the wild and no public exploit code.
Sources
Also known as AZL-105057, DEBIAN-CVE-2026-96675, ECHO-9212-44dc-f572, GHSA-3gf2-g4r5-8vxr, UBUNTU-CVE-2026-96675.