Jenkins

Jenkins at a glance

Jenkins is a widely used open-source automation server for CI/CD. Jenkins ships weekly and LTS releases plus frequent security advisories covering the core and its huge plugin ecosystem; as a build system with credentials and deploy reach, prompt patching is essential.

For admins the LTS line is the right base for production. The plugins are where most security issues live — keep them minimal, current, and from trusted sources, and read the security advisories that bundle plugin fixes. Jenkins holds credentials to many systems and executes pipeline code, so lock it down: authentication, least-privilege, isolated agents, and no anonymous access. Update through the built-in mechanism; back up the config (JENKINS_HOME) first. Subscribe to Jenkins security advisories; patchletter surfaces new releases.