Buffer overflow in Samtools Htslib
CVE-2026-31969
HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data using a variety of encodings and compression methods. When reading data encoded using the `BYTE_…
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-q4cj-f4h5-fqgc (x_refsource_CONFIRM)
- https://github.com/samtools/htslib/commit/88cdf69e4b83bb550ab4f6f7134892c2ad1978f4 (x_refsource_MISC)