LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool.

Code

The project this record applies to. Exploit listings stay in References.

• Repository · github.com

Timeline

Detection, updates, and resolution for this record.

1. Feb 20, 2026 · NIST NVD

   Detected

   LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 25.12.0 and below are vulnerable to Reflected XSS attacks via email field. This issue has been fixed in version 26.2.0.

2. Jun 17, 2026 · NIST NVD

   Updated

   LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 25.12.0 and below are vulnerable to Reflected XSS attacks via email field. This issue has been fixed in version 26.2.0.

Affected

• cpe librenms/librenmsversion unspecified

Sources

• CVE.orgVulnerability recordCVE-2026-26987

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2026-26987

  LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 25.12.0 and below are vulnerable to Reflected XSS attacks via email field. This issue has been fixed in version 26.2.0.

  nvd.nist.gov

References

• Patch · github.com
• Issue Tracking · github.com
• Product · github.com
• Exploit · github.com