CVEvulnerability
CVE-2026-61550
9.8 CRITICAL
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-09-18
- Last modified
- 2026-09-24
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-862
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.
Related
Weakness · CWE (1)
- CWE-862 Missing Authorization weakness
References
- https://github.com/Icinga/icinga2/commit/4b7fb3405f4616a24b2b55e20f603a56b7dd6ad0 github.com
- https://github.com/Icinga/icinga2/commit/6c2e0db3819f859910a4ae265461cb51b1d2039c github.com
- https://github.com/Icinga/icinga2/commit/a6f7cc7a4ef8beed023b24416106822d6940c4c0 github.com
- https://github.com/Icinga/icinga2/commit/d37b0cfd7d9595ae2f02fadb3d724c98d8620f81 github.com
- https://github.com/Icinga/icinga2/pull/10907 github.com
- https://github.com/Icinga/icinga2/releases/tag/v2.14.9 github.com
- https://github.com/Icinga/icinga2/releases/tag/v2.15.4 github.com
- https://github.com/Icinga/icinga2/releases/tag/v2.16.2 github.com
- https://github.com/Icinga/icinga2/security/advisories/GHSA-vj39-ww8j-vvx5 github.com
- https://icinga.com/blog/icinga2-security-release-v2-16-2 icinga.com