GHSA-cm76-qm8v-3j95

### Impact

A time-of-check to time-of-use (TOCTOU) vulnerability was found in containerd v2.1.0. While unpacking an image during an image pull, specially crafted container images could arbitrarily modify the host file system.

### Patches This bug has been fixed in the following containerd versions:

* 2.1.1

The only affected version of containerd is 2.1.0. Other versions of containerd are not affected.

Users should update to this version to resolve the issue.

### Workarounds Ensure that only trusted images are used and that only trusted users have permissions to import images.

### Credits The containerd project would like to thank Tõnis Tiigi for responsibly disclosing this issue in accordance with the [containerd security policy](https://github.com/containerd/project/blob/main/SECURITY.md).

### References https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-47290

### For more information If you have any questions or comments about this advisory:

* Open an issue in [containerd](https://github.com/containerd/containerd/issues/new/choose) * Email us at [security@containerd.io](mailto:security@containerd.io)

To report a security issue in containerd:

* [Report a new vulnerability](https://github.com/containerd/containerd/security/advisories/new) * Email us at [security@containerd.io](mailto:security@containerd.io)