Docker is warning of a critical flaw impacting certain versions of Docker Engine that could allow an attacker to sidestep authorization plugins (AuthZ) under specific circumstances.
Tracked as CVE-2024-41110, the bypass and privilege escalation vulnerability carries a CVSS score of 10.0, indicating maximum severity.
“An attacker could exploit a bypass using an API request with Content-Length set to 0, causing the Docker daemon to forward the request without the body to the AuthZ plugin, which might approve the request incorrectly,” the Moby Project maintainers said in an advisory.
Docker said the issue is a regression in that the issue was originally discovered in 2018 and addressed in Docker Engine v18.09.1 in January 2019, but never got carried over to subsequent versions (19.03 and later).

The issue has been resolved in versions 23.0.14 and 27.1.0 as of July 23, 2024, after the problem was identified in April 2024. The following versions of Docker Engine are impacted assuming AuthZ is used to make access control decisions –