CVE-2026-26990 HIGH

CVE-2026-26990: LibreNMS has Time-Based Blind SQL Injection in address-search.inc.php

Vendor Librenms

Product librenms

Weakness CWE-89 · SQLi

Published February 20, 2026

Last update February 20, 2026

View on NVD All CVEs

CVSS base score

8.8/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction None

Confidentiality High

Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

February 20, 2026 CVE published

February 20, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-26990 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/89.html