containerd is a container runtime. 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. The only affected version of containerd is 2.1.0. Other versions of containerd are not affected. This bug has been fixed in containerd 2.1.1. Users should update to this version to resolve the issue. As a workaround, ensure that only trusted images are used and that only trusted users have permissions to import images.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - containerd is a container runtime. 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. The only affected version of containerd is 2.1.0. Other versions
    of containerd are not affected. This bug has been fixed in containerd 2.1.1. Users should update to this
    version to resolve the issue. As a workaround, ensure that only trusted images are used and that only
    trusted users have permissions to import images. (CVE-2025-47290)

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-bacdac27c8 advisory.

    Automatic update for containerd-2.1.1-1.fc43.

    ##### **Changelog**

    ```
    * Tue May 20 2025 Bradley G Smith <bradley.g.smith@gmail.com> - 2.1.1-1
    - Update package to release v2.1.1
    - Resolves: rhbz#2367642, rhbz#2360623
    - Fixes a critical vulnernability (CVE-2025-47290)
    - rhbz # 2367666 is for F42 and rhbz # 2367665 is for F41 which have       versions of containerd not affect by CVE-2025-47290
    - Upstream fixes

    ```

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Containerd on the remote host is 2.1.x prior to 2.1.1. It is, therefore, affected by a vulnerability. 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. The only affected version of containerd is 2.1.0. Other versions of containerd are not affected. This bug has been fixed in containerd 2.1.1. Users should update to this version to resolve the issue. As a workaround, ensure that only trusted images are used and that only trusted users have permissions to import images.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
434789	SCA: security update for github.com/containerd/containerd/v2 (GHSA-cm76-qm8v-3j95)	Tenable Cloud Security	SCA Checks	critical
434789	SCA: security update for github.com/containerd/containerd/v2 (GHSA-cm76-qm8v-3j95)	Tenable Self-Hosted Container Security	SCA Checks	critical
242250	Fedora 43 : containerd (2025-bacdac27c8)	Nessus	Fedora Local Security Checks	critical
427770	Alpine: multiple containerd packages: security update to 2.1.1-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	critical
427770	Alpine: multiple containerd packages: security update to 2.1.1-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	critical
237291	Containerd 2.1.x < 2.1.1 TOCTOU	Nessus	Misc.	critical

Detections

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CVE-2025-47290

critical

Tenable Plugins

critical

critical

critical

critical

critical

critical