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  5. CVE-2026-26987

CVE-2026-26987: LibreNMS affected by reflected xss via email field

February 18, 2026 (updated February 20, 2026)

reflected xss via email field

References

  • github.com/advisories/GHSA-gqx7-99jw-6fpr
  • github.com/librenms/librenms
  • github.com/librenms/librenms/commit/8e626b38ef92e240532cdac2ac7e38706a71208b
  • github.com/librenms/librenms/pull/19038
  • github.com/librenms/librenms/releases/tag/26.2.0
  • github.com/librenms/librenms/security/advisories/GHSA-gqx7-99jw-6fpr
  • nvd.nist.gov/vuln/detail/CVE-2026-26987

Code Behaviors & Features

Detect and mitigate CVE-2026-26987 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →

Affected versions

All versions before 26.2.0

Fixed versions

  • 26.2.0

Solution

Upgrade to version 26.2.0 or above.

Impact 5.4 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Learn more about CVSS

Weakness

  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Source file

packagist/librenms/librenms/CVE-2026-26987.yml

Spotted a mistake? Edit the file on GitLab.

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