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containerd: Arbitrary host CRI log file read via symlink following in CRI checkpoint restore

CVSS 4.0 8.2 HIGHCheck source for fixed versionsKEV status unknown

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-53489

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-53489

Published

containerd

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "containerd",
                    "product": "containerd",
                    "versions": [
                        {
                            "version": ">= 2.1.0, < 2.1.9",
                            "status": "affected"
                        },
                        {
                            "version": ">= 2.2.0, < 2.2.5",
                            "status": "affected"
                        },
                        {
                            "version": ">= 2.3.0, < 2.3.2",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

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