{"id":"CVE-2026-53759","title":"linuxfabrik-lib provides Python modules for database access, caching, shell execution, and API integrations","summary":"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 att…","severity":"low","cwe":["CWE-377"],"vendor":"linuxfabrik-lib","product":"linuxfabrik-lib","affected":["linuxfabrik-lib < 4.2.0"],"patched":["linuxfabrik-lib 4.2.0"],"published":"2026-08-18","updated":"2026-09-09","sourceUpdated":"2026-09-09T21:13:25.910","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-53759","references":[{"url":"https://github.com/Linuxfabrik/lib/blob/main/CHANGELOG.md#v420---2026-06-02","label":"security-advisories@github.com"},{"url":"https://github.com/Linuxfabrik/lib/commit/1e3ca61d45e37ef118aa0c107b420ef74458697e","label":"security-advisories@github.com"},{"url":"https://github.com/Linuxfabrik/lib/releases/tag/v4.2.0","label":"security-advisories@github.com"},{"url":"https://github.com/Linuxfabrik/monitoring-plugins/security/advisories/GHSA-r35r-fpx2-jgr4","label":"security-advisories@github.com"},{"url":"https://github.com/Linuxfabrik/monitoring-plugins/security/advisories/GHSA-r35r-fpx2-jgr4","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://github.com/advisories/GHSA-r35r-fpx2-jgr4"}],"tags":["nvd","ghsa","pip"],"epss":0.00254,"epssPercentile":0.17189,"aliases":["GHSA-r35r-fpx2-jgr4"],"ecosystem":"pip","ingestedAt":"2026-07-06T20:46:12.649Z","slug":"CVE-2026-53759","body":"## Overview\n\nlinuxfabrik-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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-53759)\n\nAffected packages:\n\n- `linuxfabrik-lib < 4.2.0`\n\nPatched in:\n\n- `linuxfabrik-lib 4.2.0`\n\nSource: https://github.com/advisories/GHSA-r35r-fpx2-jgr4","depth":"sunlit","depthScore":14,"depthScoreParts":{"impact":13.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}