Is this vulnerability remotely exploitable?

Yes, it is remotely exploitable through the web interface, but only by users who can successfully authenticate and access the affected address search functionality.

What level of access does an attacker need to exploit this issue?

The attacker needs a valid LibreNMS account with permissions to perform address or subnet searches. No elevated administrative privileges are strictly required as long as the vulnerable endpoint is accessible after login.

What is the safest general fix pattern for this type of vulnerability?

The most robust fix is to replace all dynamic SQL construction involving user input with parameterized queries or prepared statements, and to validate that inputs like subnet prefixes conform to strict expected formats before use.

Severity:

HIGH RISK

(8.8)

Time-Based Blind SQL Injection (CWE-89) in LibreNMS Address Search

CVE-2026-26990

Published:

Feb 19, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

SQL Injection

CWE:

CWE-89

Impact:

Authenticated Time-Based Blind SQL Injection Leading to Data Exposure and Potential Data Manipulation

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Vulnerability Type

Category:

SQL Injection

CWE:

CWE-89

Impact:

Authenticated Time-Based Blind SQL Injection Leading to Data Exposure and Potential Data Manipulation

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

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Ask AI for summary of CodeAnt

Time-Based Blind SQL Injection (CWE-89) in LibreNMS Address Search

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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