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Release history

Naemon releases

Network monitoring tool based on the Nagios 4 core with performance enhancements and new features.

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v1.5.2 Bugfix

String search qualifier fix

Open
v1.5.1 Breaking risk
Breaking changes
  • Recompile any NEB (Nagios Event Broker) modules due to object structure changes.
Notable features
  • Added 'check_timeout' attribute on host and service structs to override global check timeouts
Full changelog

1.5.1 - Mar 19 2026

Breaking changes:

  • Due to object structure changes, it is recommended to recompile any NEB modules

Features:

  • new attribute 'check_timeout' on host and service structs, overrides the global host / service check timeouts. (#525)

Bugfixes:

  • fix memory corruption in mkstr caused by integer overflow (#527)
View release on GitHub
v1.5.0 Breaking risk
Breaking changes
  • Object structure changes in `host` and `service` structs require recompilation of any NEB modules when upgrading to 1.5.0
Security fixes
  • CVE-2016-9566 – fixed a theoretical root privilege escalation vulnerability in Naemon (which does not start as root by default)
Notable features
  • Use timeval for last_update in host and service structs
  • Improved eventloop runtime performance
Full changelog

1.5.0 - Feb 03 2026

Breaking changes:

  • Due to object structure changes, it is recommended to recompile any NEB modules
    when upgrading to 1.5.0

Features:

  • use timeval for last_update - this affects the host and service structs and could be a breaking change for NEB module developers. (#516)
  • improve eventloop runtime performance (#519)

Changed:

  • During startup, ensure downtimes are loaded before updating status (#502)
  • rpm spec: add provides for user / group (#520)
  • rpm: fix lto-no-text-in-archive (#515)
  • rpm: do not install INSTALL file (#515)
  • debian: remove obsolete dependency

Bugfixes:

  • fix memory leak when using service parents (514)
  • fix pending service dependencies (#509)
  • skip over dependencies when the current time is not within the time period (#511)
  • fix a theoretical root privilege escalation (CVE-2016-9566) as naemon does not start as root user by default (#507)
View release on GitHub

Beta — feedback welcome: [email protected]