Resource Exhaustion Affecting k3s package, versions <1.37.0.1-r1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.36% (27th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-K3S-20338248
  • published1 Oct 2026
  • disclosed25 Sept 2026

Introduced: 25 Sep 2026

NewCVE-2026-53493  (opens in a new tab)
CWE-400  (opens in a new tab)
CWE-770  (opens in a new tab)
CWE-834  (opens in a new tab)

How to fix?

Upgrade Chainguard k3s to version 1.37.0.1-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream k3s package and not the k3s package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

containerd is an open-source container runtime. Prior to versions 1.7.36, 2.0.13, 2.2.9, 2.3.6, and 2.4.1, a crafted OCI index graph can force very high CPU/memory usage during PullImage (before container start), causing long ContainerCreating stalls and, at larger sizes, node/runtime instability. Versions 1.7.36, 2.0.13, 2.2.9, 2.3.6, and 2.4.1 fix the issue.