cvedb.io
CVE-2021-41091
MEDIUM · CVSS 6.3
EPSS exploitation probability: 0%
Published 2021-10-04T21:15:12.680 · Last modified 2026-06-17T04:07:51.413

Summary

Moby is an open-source project created by Docker to enable software containerization. A bug was found in Moby (Docker Engine) where the data directory (typically `/var/lib/docker`) contained subdirectories with insufficiently restricted permissions, allowing otherwise unprivileged Linux users to traverse directory contents and execute programs. When containers included executable programs with extended permission bits (such as `setuid`), unprivileged Linux users could discover and execute those programs. When the UID of an unprivileged Linux user on the host collided with the file owner or group inside a container, the unprivileged Linux user on the host could discover, read, and modify those files. This bug has been fixed in Moby (Docker Engine) 20.10.9. Users should update to this versio

Affected products

mobyproject — moby

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.