CVE-2026-26990
LibreNMS has Time-Based Blind SQL Injection in address-search.inc.php
In short
LibreNMS has a SQL injection flaw in its address search feature that allows authenticated users to extract database information by sending specially crafted requests and timing the responses. An attacker can gradually discover sensitive data from the database without needing direct access.
Technical detail
Time-based blind SQL injection in address-search.inc.php via the address parameter; vulnerable versions concatenate user-supplied subnet prefix directly into SQL queries without parameterized statements. Requires authentication; allows an attacker to infer database structure and content through conditional time delays in query responses.
Summary generated and translated by AI from the official description.
LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 25.12.0 and below have a Time-Based Blind SQL Injection vulnerability in address-search.inc.php via the address parameter. When a crafted subnet prefix is supplied, the prefix value is concatenated directly into an SQL query without proper parameter binding, allowing an attacker to manipulate query logic and infer database information through time-based conditional responses. This vulnerability requires authentication and is exploitable by any authenticated user. This issue has been fixedd in version 26.2.0.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
librenms · librenmsWant to know if your infrastructure is exposed to this?
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