Vulnerability Description
linuxfabrik-lib provides Python modules for database access, caching, shell execution, and API integrations. Prior to version 4.2.0, db_sqlite.py created SQLite databases at predictable paths in the shared /tmp directory and followed attacker-created symbolic links at those paths. An attacker who controls a local monitoring account can create a symlink such as /tmp/linuxfabrik-monitoring-plugins-docker-stats.db and then trigger a sudo-authorized plugin, causing the root process to create or modify the symlink target. The primitive can overwrite arbitrary paths, cause denial of service, or manipulate an existing SQLite database through a crafted rollback journal or write-ahead log. The Monitoring Plugins integration also moved plugin caches through lib.db_sqlite.get_db_path() so they use the secured per-user directory. This issue is fixed in version 4.2.0.
Related Weaknesses (CWE)
References
- https://github.com/Linuxfabrik/lib/blob/main/CHANGELOG.md#v420---2026-06-02
- https://github.com/Linuxfabrik/lib/commit/1e3ca61d45e37ef118aa0c107b420ef7445869
- https://github.com/Linuxfabrik/lib/releases/tag/v4.2.0
- https://github.com/Linuxfabrik/monitoring-plugins/security/advisories/GHSA-r35r-
- https://github.com/Linuxfabrik/monitoring-plugins/security/advisories/GHSA-r35r-
FAQ
What is CVE-2026-53759?
CVE-2026-53759 is a documented vulnerability. linuxfabrik-lib provides Python modules for database access, caching, shell execution, and API integrations. Prior to version 4.2.0, db_sqlite.py created SQLite databases at predictable paths in the s...
How severe is CVE-2026-53759?
CVSS scoring is not yet available for CVE-2026-53759. Check NVD for updates.
Is there a patch for CVE-2026-53759?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.