BaseFortify

Publication date: 2025-11-17

Last updated on: 2025-11-26

Assigner: VulnCheck

Description

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 settings—including model selection and connection parameters—are 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.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-11-17

Last Modified

2025-11-26

Generated

2026-07-06

AI Q&A

2025-11-17

EPSS Evaluated

2026-07-05

NVD

CVE-2025-34322

Affected Vendors & Products

Vendor	Product	Version / Range
nagios	log_server	to 2026 (exc)
nagios	log_server	2026

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-78	The product 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.

Attack-Flow Graph

Executive Summary

This vulnerability exists in Nagios Log Server versions prior to 2026R1.0.1 and involves an authenticated command injection through the 'Natural Language Queries' feature. Configuration values for this feature are taken from application settings and used in system commands without proper validation or restriction of special characters. An authenticated user with access to global configuration can exploit this to execute arbitrary operating system commands with the privileges of the web server account, potentially compromising the Log Server host.

Impact Analysis

If exploited, this vulnerability allows an authenticated user to execute arbitrary operating system commands on the Log Server host with the privileges of the web server account. This can lead to full compromise of the Log Server host, including unauthorized access, data manipulation, or disruption of services.

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