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CVE-2026-53488: containerd vulnerability
CVE-2026-53488: critical vulnerability affecting containerd. Check CVSS, KEV status, business impact and recommended administrator actions.
- CVSS
- 9.4 CRITICAL
- EPSS
- 7.41%
- Known exploited
- not in KEV
- Product
- containerd
What is known
containerd is an open-source container runtime. In versions prior to 1.7.33, 2.3.2, 2.2.5, 2.1.9, and 2.0.10 the CRI plugin propagates labels from an image config (LABEL instruction in Dockerfile) to a container without validation. This may result in executing an arbitrary command on the host, via a plugin that consumes container labels for some operations. This issue has been fixed in versions 1.7.33, 2.3.2, 2.2.5, 2.1.9, and 2.0.10.
Business impact
Successful exploitation of CVE-2026-53488, a critical vulnerability (CVSS 9.4) affecting containerd, may affect the confidentiality, integrity or availability of the vulnerable environment. The exact impact depends on the installed version, exposed interfaces and deployment configuration.
Recommended administrator action
Confirm whether containerd is present and compare installed versions with the vendor advisory and NVD record. Apply the vendor patch or documented mitigation; until remediation is complete, reduce exposure of affected interfaces, review relevant logs and monitor for indicators of exploitation. DataHouse can support version verification, managed patching, network exposure reduction, log review and backup validation for dedicated, cloud and colocated environments.