icinga2: Icinga 2 is an open source monitoring system
CVE-2026-61550 is fixed in icinga2 on 1 platform, first by DEBIAN-CVE-2026-61550, released August 10, 2026. It is not reported as exploited. Patch Radar priority: Urgent.
Icinga 2 is an open source monitoring system. From 2.8 until 2.14.9, 2.15.4, and 2.16.2, certificate update JSON-RPC message handling does not validate that the sender is a trusted endpoint. An unauthenticated network attacker able to connect to TCP port 5665 can replace the node certificate and trusted CA certificate, impersonate a trusted node, and take control of the node. This issue is fixed in versions 2.14.9, 2.15.4, and 2.16.2.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| icinga2 · Debian 13.5 (trixie) | 2.14.6-1+deb13u1 | DEBIAN-CVE-2026-61550 | Aug 10, 2026 |
| icinga2 · Debian 14 | 2.16.2-1 | DEBIAN-CVE-2026-61550 | Aug 10, 2026 |
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