Packagist/librenms/librenms CVE-2026-55182: high 8.6, EPSS 1.61%

LibreNMS Vulnerable to Remote Code Execution by Signal Alert Transportation module

Action: Upgrade librenms/librenms to 26.5.0 or later.

composer require librenms/librenms:26.5.0

Affected

Fixed versions

Sources

• osv: GHSA-c9fv-cgmm-2wg7
• nvd: CVE-2026-55182
• https://github.com/librenms/librenms/security/advisories/GHSA-c9fv-cgmm-2wg7
• https://github.com/librenms/librenms
• https://github.com/librenms/librenms/releases/tag/26.5.0

CVE-2026-55182 · published 2026-08-18T17:59:56Z · modified 2026-08-18T18:50:02.547289Z · JSON