SB2026021934 - Multiple vulnerabilities in LibreNMS

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) SQL injection (CVE-ID: CVE-2026-26988)

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.

2) SQL injection (CVE-ID: CVE-2026-26990)

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 address-search.inc.php within the "address" parameter. A remote user 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.

Remediation

Install update from vendor's website.

References

• https://github.com/librenms/librenms/security/advisories/GHSA-h3rv-q4rq-pqcv
• https://github.com/librenms/librenms/security/advisories/GHSA-79q9-wc6p-cf92