What’s Vulnerable › Vulnerabilities
CVE-2026-53489: containerd: Arbitrary host CRI log file read via symlink following in CRI checkpoint restore
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-07-01 · updated 2026-07-02
- Weakness: CWE-61
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.
Affected products
- containerd: from 2.1.0 before 2.1.9; from 2.2.0 before 2.2.5; from 2.3.0 before 2.3.2 — fixed in 2.1.9, 2.2.5, 2.3.2
How to fix
Upgrade to a fixed version: containerd 2.1.9, 2.2.5, 2.3.2. Check the vendor advisory for mitigations.
References
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