CVE-2026-53493

Summary

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.

Affected Software

VendorProductVersion RangeStatus
containerdcontainerd>= 2.0.0, < 2.0.13affected
containerdcontainerd< 1.7.36affected
containerdcontainerd>= 2.1.0, < 2.2.9affected
containerdcontainerd>= 2.3.0, < 2.3.6affected
containerdcontainerd= 2.4.0affected

Weaknesses

  • CWE-400: CWE-400: Uncontrolled Resource Consumption
  • CWE-770: CWE-770: Allocation of Resources Without Limits or Throttling
  • CWE-834: CWE-834: Excessive Iteration

References