CVE-2026-32288: Unbounded allocation for old GNU sparse in archive/tar

Overview

Severity
Medium (CVSS 5.5)
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Exploit Status
Not Exploited
Patch Tuesday
2026-Apr
Released
2026-04-11
Last Updated
2026-09-09
EPSS Score
0.29% (percentile: 21.5%)

Affected Products (21)

Open Source Software

  • azl3 containerized-data-importer 1.62.0-3 on Azure Linux 3.0
  • azl3 gh 2.62.0-15 on Azure Linux 3.0
  • azl3 moby-engine 25.0.3-17 on Azure Linux 3.0
  • azl3 skopeo 1.14.4-10 on Azure Linux 3.0
  • cbl2 containerized-data-importer 1.55.0-28 on CBL Mariner 2.0
  • cbl2 cri-o 1.22.3-20 on CBL Mariner 2.0
  • azl3 containerized-data-importer 1.62.0-2 on Azure Linux 3.0
  • cbl2 golang 1.18.8-10 on CBL Mariner 2.0
  • cbl2 golang 1.22.7-5 on CBL Mariner 2.0
  • azl3 gh 2.62.0-13 on Azure Linux 3.0
  • azl3 golang 1.25.8-1 on Azure Linux 3.0
  • cbl2 moby-engine 24.0.9-19 on CBL Mariner 2.0
  • azl3 golang 1.26.1-1 on Azure Linux 3.0
  • cbl2 msft-golang 1.25.8-1 on CBL Mariner 2.0
  • azl3 moby-engine 25.0.3-15 on Azure Linux 3.0
  • cbl2 skopeo 1.14.2-15 on CBL Mariner 2.0
  • azl3 skopeo 1.14.4-9 on Azure Linux 3.0
  • azl3 golang 1.25.9-1 on Azure Linux 3.0
  • azl3 golang 1.26.2-1 on Azure Linux 3.0

Other

  • 21778-17084
  • 21809-17084

Security Updates (1)

Revision History

  • 2026-04-11: Information published.
  • 2026-04-14: Information published.
  • 2026-04-15: Information published.
  • 2026-04-21: Information published.
  • 2026-04-23: Information published.
  • 2026-04-29: Information published.
  • 2026-04-30: Information published.
  • 2026-06-03: Information published.
  • 2026-06-23: Information published.
  • 2026-09-03: Information published.
  • 2026-09-08: Information published.
  • 2026-09-09: Information published.