OpenKM CE is a Java and Tomcat based DMS with repository content and role-aware access. Hardening should prioritize authentication backend choices, repository permission model, and JVM/container surface reduction.
¶ 1) Harden authentication and user lifecycle
- integrate with LDAP/AD where possible and disable unused local admin identities
- restrict administrative roles to document platform operators only
- enforce strong password policy and account lockout controls in identity provider
- critical: change default credentials immediately after installation (
okmAdmin / admin)
- review repository role permissions to prevent broad read access to sensitive folders
- protect metadata exports and automation credentials used by integrations
- keep OpenKM database and file storage volumes private and least-privileged
¶ 3) Reduce Tomcat and container attack surface
- expose OpenKM only behind TLS reverse proxy and disable direct external Tomcat access
- keep JVM, Tomcat base image, and OpenKM CE updated on security patch cadence
- enforce encrypted backups for repository documents and index metadata
- note: version 7.0+ is distributed as binary only (no public source code); versions 6.x and earlier are source-available under GPL-2.0
- OpenKM website: https://www.openkm.com
- OpenKM source code: https://github.com/openkm/document-management-system
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