CVE-2026-55182: LibreNMS Vulnerable to Remote Code Execution by Signal Alert Transportation module

high Affects librenms/librenms. Feed 2026.10.29.4, updated 2026-10-29; published 2026-08-18.

LibreNMS Vulnerable to Remote Code Execution by Signal Alert Transportation module

Package: librenms/librenms Composer
Affected versions: >=21.6.0 and <26.5.0
Fixed in: 26.5.0
Severity: high
Exploitation: not on CISA KEV · EPSS 2% (75.8th percentile)
Published: 2026-08-18
Source: osv.dev

References

Am I affected?

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# PHP projects (recommended)
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