Nagios Log Server 2026R1.0.1 Authenticated Command Injection via NL Queries: CVE-2025-34322 November 2025

Nagios Log Server < 2026R1.0.1 Authenticated Command Injection via Natural Language Queries
Nagios Log Server versions prior to 2026R1.0.1 contain an authenticated command injection vulnerability in the experimental 'Natural Language Queries' feature. When this feature is configured, certain user-controlled settingsincluding model selection and connection parametersare read from the global configuration and concatenated into a shell command that is executed via shell_exec() without proper input handling or command-line argument sanitation. An authenticated user with access to the 'Global Settings' page can supply crafted values in these fields to inject additional shell commands, resulting in arbitrary command execution as the 'www-data' user and compromise of the Log Server host.

Timeline

Weakness Type

What is a Shell injection Vulnerability?

The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

CVE-2025-34322 has been classified to as a Shell injection vulnerability or weakness.

Products Associated with CVE-2025-34322

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Affected Versions

Exploit Probability

EPSS

0.39%

Percentile

59.48%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.