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A bug was found in containerd where 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 bug has been fixed in the following containerd versions:
Users should update to these versions to resolve the issue.
Ensure that only trusted images are used.
The containerd project would like to thank Anthropic Research, in collaboration with Claude, the GKE Security Team using Gemini, and Robert Prast (@robertprast) for independently discovering and responsibly disclosing this issue in accordance with the containerd security policy.
If you have any questions or comments about this advisory:
To report a security issue in containerd:
A bug was found in containerd where 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 bug has been fixed in the following containerd versions:
Users should update to these versions to resolve the issue.
Ensure that only trusted images are used.
The containerd project would like to thank Anthropic Research, in collaboration with Claude, the GKE Security Team using Gemini, and Robert Prast (@robertprast) for independently discovering and responsibly disclosing this issue in accordance with the containerd security policy.
If you have any questions or comments about this advisory:
To report a security issue in containerd:
This medium-severity vulnerability could be exploited under certain conditions to compromise security controls or access sensitive information. Should be addressed in a timely manner.
Probability of exploitation in the next 30 days · more likely than 6.6% of all CVEs.
Apply security patches to version 2.0.10 immediately
Isolate affected systems from untrusted networks until patching is complete
Implement enhanced monitoring for exploitation attempts and unusual behavior