CVE-2026-26990— LibreNMS has Time-Based Blind SQL Injection in address-search.inc.php
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I. Basic Information for CVE-2026-26990
Vulnerability Information
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Vulnerability Title
LibreNMS has Time-Based Blind SQL Injection in address-search.inc.php
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
LibreNMS SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LibreNMS是LibreNMS社区的一套基于PHP和MySQL的开源网络监控系统。该系统具有自定义警报、自动发现网络环境和自动更新等特点。 LibreNMS 25.12.0及之前版本存在SQL注入漏洞，该漏洞源于address-search.inc.php中address参数处理不当，可能导致基于时间的盲SQL注入攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-26990
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Same Patch Batch · librenms · 2026-02-20 · 7 CVEs total
| CVE-2026-27016 | 5.4 MEDIUM | LibreNMS has Stored XSS in Custom OID - unit parameter missing strip_tags() |
| CVE-2026-26989 | 4.3 MEDIUM | LibreNMS has Stored XSS in Alert Rule |
| CVE-2026-26992 | LibreNMS has Stored Cross-Site Scripting via unsanitized /port-groups name | |
| CVE-2026-26991 | LibreNMS vulnerable to Stored Cross-site Scripting through unsanitized /device-groups name | |
| CVE-2026-26988 | LibreNMS: SQL Injection in ajax_table.php spreads through a covert data stream | |
| CVE-2026-26987 | LibreNMS affected by reflected XSS via email field |
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Same weakness: CWE-89
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V. Comments for CVE-2026-26990
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