What’s Vulnerable › Vulnerabilities
CVE-2026-47262: containerd image-triggered runtime DoS via unbounded group parsing
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-07-01 · updated 2026-07-02
- Weakness: CWE-400
Description
containerd is an open-source container runtime. Versions prior to 1.7.33, 2.0.10, 2.1.9, 2.2.5 and 2.3.2, contain a vulnerability that allows a maliciously crafted image to cause a Denial of Service (DoS) condition. When creating a container from this image, memory exhaustion occurs, leading to an Out Of Memory (OOM) kill of the containerd process. This renders the container runtime API unavailable and can disrupt clients such as the Docker Engine or Kubernetes control-plane components. This issue has been fixed in versions 1.7.33, 2.0.10, 2.1.9, 2.2.5 and 2.3.2.
Affected products
- containerd: from 1.7.0 before 1.7.33; from 2.0.0 before 2.0.10; from 2.1.0 before 2.1.9; from 2.2.0 before 2.2.5; from 2.3.0 before 2.3.2 — fixed in 1.7.33, 2.0.10, 2.1.9, 2.2.5, 2.3.2
How to fix
Upgrade to a fixed version: containerd 1.7.33, 2.0.10, 2.1.9, 2.2.5. Check the vendor advisory for mitigations.
References
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