CVE-2026-31966

A flaw was found in htslib, a library for reading and writing bioinformatics file formats. Specifically, within the CRAM Compressed Reference-oriented Alignment Map decoding process, insufficient validation of feature data series could allow a remote attacker to craft malicious CRAM records. This...

UBUNTU-CVE-2026-31966

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 of storing the full sequence for each alignment record it...

CVE-2026-31966

CVE-2026-31966 affects HTSlib’s CRAM reader. The vulnerability stems from insufficient validation of the feature data series in cram_decode_seq(), allowing data to be copied from before the start or after the end of the stored reference into output buffers or the SAM MD tag. This can lead to info...