CVE-2026-4111: Libarchive: infinite loop denial of service in rar5 decompression via archive_read_data() in libarchive

Overview

Severity
High (CVSS 7.5)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploit Status
Not Exploited
Patch Tuesday
2026-Mar
Released
2026-03-17
Last Updated
2026-03-18
EPSS Score
0.03% (percentile: 10.2%)

Affected Products (2)

Open Source Software

  • cbl2 libarchive 3.6.1-8 on CBL Mariner 2.0
  • azl3 libarchive 3.7.7-4 on Azure Linux 3.0

Revision History

  • 2026-03-17: Information published.
  • 2026-03-18: Information published.
  • 2026-03-18: Information published.