Vulnerability · Published Feb 20, 2026 · Assigned by GitHub_M
CVE-2026-26990LibreNMS has Time-Based Blind SQL Injection in address-search.inc.php
High 8.8
In plain English
A high-severity SQL injection in librenms from librenms. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.5% (higher than 91% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | librenms/librenms | 26.2.0 | GHSA-79q9-wc6p-cf92 |
Affected products (as reported)
Weakness: CWE-89 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://github.com/librenms/librenms/security/advisories/GHSA-79q9-wc6p-cf92 x_refsource_CONFIRM
- https://github.com/librenms/librenms/pull/18777 x_refsource_MISC
- https://github.com/librenms/librenms/commit/15429580baba03ed1dd377bada1bde4b7a1175a1 x_refsource_MISC