CVE-2026-96674 alsa-lib through 1.2.16.1 Integer Overflow via Topology File
Attackers can cause integer overflows in alsa-lib via crafted topology files, leading to out-of-bounds reads that may leak sensitive data or crash the application.
- 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-2026-96674?
CVE-2026-96674 is a medium-severity vulnerability in alsa-lib, published on 23 Sep 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
alsa-lib through 1.2.16.1 computes combined topology element size using 32-bit arithmetic in src/topology/ctl.c, allowing integer overflow that defeats bounds checks. Attackers can supply crafted topology files that wrap size calculations, causing the decoder to read beyond the topology buffer and potentially leak sensitive data or crash the application.
Weakness: CWE-190
Which versions are affected by CVE-2026-96674?
How do I fix CVE-2026-96674?
Apply the vendor's patch.
Is CVE-2026-96674 being exploited?
There is no known exploitation of CVE-2026-96674 in the wild and no public exploit code.
Sources
Also known as AZL-105054, DEBIAN-CVE-2026-96674, ECHO-21cd-b9f7-14b1, GHSA-w2qj-qh9f-h5cc, UBUNTU-CVE-2026-96674.