🛡️ CVE-2026-53489 on Ubuntu — containerd-app

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

containerd is an open-source container runtime. Versions prior to 2.3.2, 2.2.5 and 2.1.9 contain a bug where the CRI plugin restores container.log from a checkpoint image without validating a symlinked path. This could result in reading an arbitrary file on the host via kubectl logs. This issue has been fixed in versions 2.3.2, 2.2.5 and 2.1.9.

Distribution advisory

This page covers CVE-2026-53489 as tracked by Ubuntu, for the package containerd-app. The fix is available in version 2.2.2-0ubuntu1.1; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity none, availability none.

Affected software

UBUNTU-CVE-2026-53489 is recorded against 2 packages.

  • containerd-app (fixed in 2.2.2-0ubuntu1.1)
  • containerd-stable (fixed in 2.2.2-0ubuntu1.1)

Timeline and source

Published on 22 June 2026 and last revised on 9 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Report)
www.cve.org (Report)
github.com (Report)
ubuntu.com (Advisory)
ubuntu.com (Advisory)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-06-22
Updated 2026-08-12
Modified 2026-07-09
Fix URL N/A

Affected Packages

Software From version Fixed in
containerd-app — 2.2.2-0ubuntu1.1
containerd-stable — 2.2.2-0ubuntu1.1

Site Security Check

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UBUNTU-CVE-2026-53489 is rated CVSS 8.0 High. BotEraser scans your installation against known CVE records and tells you whether this vulnerability applies to the versions you actually run.

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