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CVE-2026-26990

LibreNMS has Time-Based Blind SQL Injection in address-search.inc.php

Published: Feb 20, 2026Updated: Feb 20, 2026 Sources: CVE List NVD GHSACWE-89
NVD MITRE
8.8CVSSHIGH
EPSS Score
4.1%
Top 10.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-89

Affected Products

librenmslibrenms
On-prem
Enterprise Software / itsm-monitoring
librenms/librenmsPackagistOSS Libraries
librenmsoss-projectEnterprise Softwareaka librenms/librenms, librenms
packagistpackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
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References

https://github.com/librenms/librenms/commit/15429580baba03ed1dd377bada1bde4b7a1175a1
github.com
https://github.com/librenms/librenms/pull/18777
github.com
https://github.com/librenms/librenms/security/advisories/GHSA-79q9-wc6p-cf92
github.com
and 1 more references View all →

Timeline

Published
Feb 20, 2026
Last Updated
Feb 20, 2026

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