CVE-2021-41092: Docker Command Line Interface

High severity, CVSS 7.5. EPSS: 1.7% chance of exploitation in the next 30 days.

Docker CLI is the command line interface for the docker container runtime. A bug was found in the Docker CLI where running `docker login my-private-registry.example.com` with a misconfigured configuration file (typically `~/.docker/config.json`) listing a `credsStore` or `credHelpers` that could not be executed would result in any provided credentials being sent to `registry-1.docker.io` rather than the intended private registry. This bug has been fixed in Docker CLI 20.10.9. Users should update to this version as soon as possible. For users unable to update ensure that any configured credsStore or credHelpers entries in the configuration file reference an installed credential helper that is executable and on the PATH.

Affected products

• Docker Command Line Interface: before 20.10.9 (fixed in 20.10.9)
• Fedoraproject Fedora: version 34 only; version 35 only

Published 2021-10-04. Last modified 2026-06-17.