Symlink Following Affecting linkerd2 package, versions <26.6.3-r2


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.19% (9th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-LINKERD2-17802266
  • published3 Jul 2026
  • disclosed1 Jul 2026

Introduced: 1 Jul 2026

CVE-2026-53489  (opens in a new tab)
CWE-61  (opens in a new tab)

How to fix?

Upgrade Chainguard linkerd2 to version 26.6.3-r2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linkerd2 package and not the linkerd2 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1