Command Injection Affecting linuxfabrik-lib package, versions [,5.0.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-LINUXFABRIKLIB-17872183
- published6 Jul 2026
- disclosed6 Jul 2026
- creditUnknown
Introduced: 6 Jul 2026
CVE-2026-55426 (opens in a new tab)How to fix?
Upgrade linuxfabrik-lib to version 5.0.0 or higher.
Overview
linuxfabrik-lib is a Python libraries used in various Linuxfabrik projects, including the 'Linuxfabrik Monitoring Plugins' project.
Affected versions of this package are vulnerable to Command Injection via the shell_exec function. An attacker can execute arbitrary commands with elevated privileges by injecting malicious input into command arguments that are passed to the shell. This is only exploitable if the affected plugin is listed in the sudoers file, allowing a user with limited privileges to escalate to root.