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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.

PUBLISHED Reserved 2026-02-17 | Published 2026-02-20 | Updated 2026-02-20 | Assigner GitHub_M




HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Product status

< 26.2.0
affected

References

github.com/...brenms/security/advisories/GHSA-79q9-wc6p-cf92

github.com/librenms/librenms/pull/18777

github.com/...ommit/15429580baba03ed1dd377bada1bde4b7a1175a1

cve.org (CVE-2026-26990)

nvd.nist.gov (CVE-2026-26990)

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