CVE CVE-2026-26988

CVE-2026-26988

PHP

Severity: CRITICAL
CVSS: 9.1CVSS
Published: 2026-02-20
Last modified: 2026-02-20
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE: CWE-89

Description

LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 25.12.0 and below contain an SQL Injection vulnerability in the ajax_table.php endpoint. The application fails to properly sanitize or parameterize user input when processing IPv6 address searches. Specifically, the address parameter is split into an address and a prefix, and the prefix portion is directly concatenated into the SQL query string without validation. This allows an attacker to inject arbitrary SQL commands, potentially leading to unauthorized data access or database manipulation. This issue has been fixed in version 26.2.0.

References

https://github.com/librenms/librenms/commit/15429580baba03ed1dd377bada1bde4b7a1175a1
https://github.com/librenms/librenms/pull/18777
https://github.com/librenms/librenms/security/advisories/GHSA-h3rv-q4rq-pqcv

Summary

Description

References