CVE-2026-88386

Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days.

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.

Published 2026-09-24. Last modified 2026-09-25.