SQL injection in LibreNMS - CVE-2026-26988
Published: February 19, 2026 / Updated: February 19, 2026
Vulnerability identifier: #VU123075
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2026-26988
CWE-ID: CWE-89
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: LibreNMS Project
Affected software:
LibreNMS
LibreNMS
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.
The vulnerability exists due to insufficient sanitization of user-supplied data in IPv6 Address Search functionality within the "address" parameter. A remote attacker can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.
Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.
How to mitigate CVE-2026-26988
Install updates from vendor's website.