CVE-2026-26990
High · 8.8CVSS
8.8
EPSS
0.7%
Published
Feb 20, 2026
CISA due date
—
The record
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
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Packagist | librenms/librenms | 0 | 26.2.0 |
Related vulnerabilities
- GHSA-79q9-wc6p-cf92 LibreNMS has a Time-Based Blind SQL Injection in address-search.inc.php Same vulnerability
- CVE-2024-51092 LibreNMS before 24.10.0 allows a remote attacker to execute arbitrary code via OS command… Also affects librenms/librenms
- CVE-2026-26992 LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Also affects librenms/librenms
- CVE-2026-26991 LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Also affects librenms/librenms
- CVE-2026-27016 LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Also affects librenms/librenms
- CVE-2026-26989 LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Also affects librenms/librenms
- CVE-2026-26988 LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Also affects librenms/librenms
- CVE-2026-26987 LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Also affects librenms/librenms