What’s Vulnerable › Vulnerabilities
CVE-2026-53493: Containerd has image-pull DoS via crafted OCI index graph amplification
- Severity: medium (CVSS 6.9 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-25 · updated 2026-09-28
- Weakness: CWE-400
Description
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 products
- containerd: from 2.0.0, < 2.0.13; before 1.7.36; from 2.1.0, < 2.2.9; from 2.3.0, < 2.3.6; = 2.4.0
References
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