CVE-2026-31964

medium Red Hat
CVSS v3 Base Score
5.0
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Attack Characteristics
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Published: March 18, 2026 (57 days ago)
Last Modified: March 18, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in HTSlib, a library for reading and writing bioinformatics file formats. When processing specially crafted CRAM (Compressed Reference-aligned Alignment Map) data, specifically records that omit sequence or quality data using the CONST, XPACK, or XRLE encodings, the library attempts to write to a NULL pointer. This NULL pointer dereference can cause the program to crash, leading to a Denial of Service (DoS).

CWE

CWE-476

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 github.com 🔗 github.com