CVE-2026-88386 Memory corruption in n/a
A misaligned memory access in libsndfile allows attackers to cause a denial of service via crafted WAV files.
- 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-2026-88386?
CVE-2026-88386 is a medium-severity memory corruption vulnerability in n/a, published on 24 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
libsndfile 1.2.2 contains a misaligned memory access issue in psf_binheader_readf() while parsing WAV fmt chunks. A specially crafted WAV file can cause the function to cast an unaligned destination address to unsigned int * and perform a 4-byte store. This results in undefined behavior leading to denial of service.
Weakness: CWE-122
Which versions are affected by CVE-2026-88386?
Linux distribution packages (1)
libsndfile openSUSE:Tumbleweed | All versions | 1.2.2-6.1 |
How do I fix CVE-2026-88386?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-88386 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-88386 exists.
Sources
Also known as AZL-106800, DEBIAN-CVE-2026-88386, ECHO-9923-e474-207e, GHSA-x44m-83p2-j4h6, OESA-2026-4561, OESA-2026-4562 and 4 more.