CVE-2026-4426: Libarchive: libarchive: denial of service via malformed iso file processing
Overview
- Severity
- Medium (CVSS 6.5)
- CVSS Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-Mar
- Released
- 2026-03-25
- Last Updated
- 2026-04-24
- EPSS Score
- 0.19% (percentile: 40.9%)
Affected Products (4)
Open Source Software
- azl3 libarchive 3.7.7-4 on Azure Linux 3.0
- cbl2 libarchive 3.6.1-8 on CBL Mariner 2.0
- cbl2 libarchive 3.6.1-9 on CBL Mariner 2.0
- azl3 libarchive 3.7.7-5 on Azure Linux 3.0
Revision History
- 2026-03-25: Information published.
- 2026-03-31: Information published.
- 2026-04-22: Information published.
- 2026-04-24: Information published.