| Name | CVE-2026-61550 |
| Description | 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. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-6426-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| icinga2 (PTS) | bookworm | 2.13.6-2+deb12u2 | vulnerable |
| trixie | 2.14.6-1 | vulnerable | |
| trixie (security) | 2.14.6-1+deb13u1 | fixed | |
| forky, sid | 2.16.5-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| icinga2 | source | trixie | 2.14.6-1+deb13u1 | DSA-6426-1 | ||
| icinga2 | source | (unstable) | 2.16.2-1 |
https://github.com/Icinga/icinga2/security/advisories/GHSA-vj39-ww8j-vvx5
https://icinga.com/blog/icinga2-security-release-v2-16-2/
Fixed by: https://github.com/Icinga/icinga2/commit/a6f7cc7a4ef8beed023b24416106822d6940c4c0 (v2.16.2)
Fixed by: https://github.com/Icinga/icinga2/commit/4b7fb3405f4616a24b2b55e20f603a56b7dd6ad0 (v2.14.9)