CVE-2026-32837 mackron / miniaudio Out-of-Bounds Read in BEXT Coding History Parsing
Attackers can cause application crashes or denial of service by processing crafted WAV files with malformed BEXT metadata in the miniaudio library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-32837?
CVE-2026-32837 is a medium-severity memory corruption vulnerability in mackron miniaudio, published on 17 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
miniaudio version 0.11.25 and earlier (fixed in commits 1df46ae and 1df46ae) contain a heap out-of-bounds read vulnerability in the WAV BEXT metadata parser that allows attackers to trigger memory access violations by processing crafted WAV files. Attackers can exploit improper null-termination handling in the coding history field to cause out-of-bounds reads past the allocated metadata pool, resulting in application crashes or denial of service.
Weakness: CWE-170
Which versions are affected by CVE-2026-32837?
It affects 1 product.
Products include Mackron Miniaudio.
How do I fix CVE-2026-32837?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-32837 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-32837 exists.
Other vulnerabilities in mackron miniaudio
Sources
Also known as DEBIAN-CVE-2026-32837, GHSA-grfx-q7pf-j7ff, UBUNTU-CVE-2026-32837.