Vulnerability Description
Linuxfabrik Monitoring Plugins provides monitoring plugins for Icinga, Nagios, and related systems. Prior to version 5.1.0, the shipped assets/sudoers/Debian.sudoers policy allowed the nagios or icinga account to execute /usr/bin/apt-get as root without restricting its arguments. An attacker who already controls that monitoring account can supply the APT::Update::Pre-Invoke option to execute an arbitrary command while apt-get runs with root privileges, resulting in a root shell and complete compromise of the host. The vulnerable rule supports the check-plugins/deb-updates/deb-updates plugin, but it authorized arbitrary apt-get argument sequences rather than only the required apt-get update --quiet 2 command. This issue is fixed in version 5.1.0.
Related Weaknesses (CWE)
References
- https://github.com/Linuxfabrik/monitoring-plugins/blob/main/CHANGELOG.md#v510---
- https://github.com/Linuxfabrik/monitoring-plugins/commit/694b5daeebadc9a51428f3d
- https://github.com/Linuxfabrik/monitoring-plugins/releases/tag/v5.1.0
- https://github.com/Linuxfabrik/monitoring-plugins/security/advisories/GHSA-8w6w-
- https://github.com/Linuxfabrik/monitoring-plugins/security/advisories/GHSA-8w6w-
FAQ
What is CVE-2026-52817?
CVE-2026-52817 is a documented vulnerability. Linuxfabrik Monitoring Plugins provides monitoring plugins for Icinga, Nagios, and related systems. Prior to version 5.1.0, the shipped assets/sudoers/Debian.sudoers policy allowed the nagios or icing...
How severe is CVE-2026-52817?
CVSS scoring is not yet available for CVE-2026-52817. Check NVD for updates.
Is there a patch for CVE-2026-52817?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.