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Changelog

ufw-docker

To fix the Docker and UFW security flaw without disabling iptables

6.7k498ShellGPL-3.0

debiandockerdocker-swarmfirewalllinuxsecurity+2

Last updated 4 months ago

Nov 23, 2025

Major Changes

Conntrack Support: Switched to conntrack based firewall rules for better security and simplified logic. This fixes the issue where high UDP ports were implicitly allowed. Thanks to the suggestion in #115.

Docker Upgrade: Bumped Docker version to 29.0.2.
Testing: Added UDP protocol tests in Vagrant environment to verify rule correctness.

Jul 11, 2025

Release 250710

Sep 25, 2021

Release version 210925 of the ufw-docker-agent image

Aug 17, 2020

See README.md

Upgrade Docker Image, Ubuntu 20.04 & Docker-CE 19.03.12. Please note: the previous version doesn't support Ubuntu 20.04
Make A DOCKER-USER -j ufw-user-forward as the first rule of DOCKER-USER, then we can use ufw to manage connections from containers.
Add unit test cases to this project, using Bach Testing Framework, check the ./tests folder.
Set up a bas...