CVE-2026-52817

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/Linuxfabrik/monitoring-plugins/blob/main/CHANGELOG.md#v510---2026-05-30
https://github.com/Linuxfabrik/monitoring-plugins/commit/694b5daeebadc9a51428f3de1acff7b1f737642f
https://github.com/Linuxfabrik/monitoring-plugins/releases/tag/v5.1.0
https://github.com/Linuxfabrik/monitoring-plugins/security/advisories/GHSA-8w6w-23mq-h8rg
https://github.com/Linuxfabrik/monitoring-plugins/security/advisories/GHSA-8w6w-23mq-h8rg

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-18 21:16

Updated : 2026-09-09 21:13

NVD link : CVE-2026-52817

Mitre link : CVE-2026-52817

CVE.ORG link : CVE-2026-52817

JSON object : View

Products Affected

No product.

CWE

CWE-88

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

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