Medium 6.1Published Feb 20, 2026

CVE-2026-26987LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool.

Updated under an hour ago (2026-10-19 10:30 UTC)

Does this affect you?

It affects librenms. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for librenms

Exploited in the last 30 days

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.

CVSS: 6.1 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jun 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

librenms librenms librenms:librenms	before 26.2.0	NVD

References

https://github.com/librenms/librenms/commit/8e626b38ef92e240532cdac2ac7e38706a71208bpatch
https://github.com/librenms/librenms/pull/19038issue-tracking
https://github.com/librenms/librenms/releases/tag/26.2.0product, release-notes
https://github.com/librenms/librenms/security/advisories/GHSA-gqx7-99jw-6fprexploit, third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.