Buffer overflow in Samtools Htslib
CVE-2026-31963
HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data. As one method of removing redundant data, CRAM uses reference-based compression so that instead…
Vulnerability class: Buffer Overflow
EPSS: 0.001 (19.1th percentile) — read the EPSS interpretation.
Affected products
- Samtools Htslib — versions < 1.21.1, >= 1.22, < 1.22.2, = 1.23
Weakness classification (CWE)
References
- https://github.com/samtools/htslib/security/advisories/GHSA-qgqh-h2q9-7w3c (x_refsource_CONFIRM)
- https://github.com/samtools/htslib/commit/8bcc9907be0f945ddc31796d64f078fa05456acd (x_refsource_MISC)