| Package | Affected versions | Patched versions |
|---|---|---|
| github.com/containerd/containerd | < 1.7.29 | 1.7.29 |
| github.com/containerd/containerd/v2 | ≥ 2.1.0-beta.0, < 2.1.5≥ 2.2.0-beta.0, < 2.2.0< 2.0.7 | 2.1.52.2.02.0.7 |
| containerd | = 2.2.0≥ 2.0.0, < 2.0.7≥ 2.1.0, < 2.1.5< 1.7.29 | 2.0.72.1.51.7.29 |
A bug was found in containerd's CRI Attach implementation where a user can exhaust memory on the host due to goroutine leaks.
Repetitive calls of CRI Attach (e.g., kubectl attach) could increase the memory usage of containerd.
This bug has been fixed in the following containerd versions:
Users should update to these versions to resolve the issue.
Set up an admission controller to control accesses to pods/attach resources.
e.g., Validating Admission Policy.
The containerd project would like to thank @Wheat2018 for responsibly disclosing this issue in accordance with the containerd security policy.
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-64329
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