CVE-2026-61552
Medium
Elevated severity or exploit probability.
CVSS base
7.2
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.9%
58.0th percentile
CISA KEV
Not listed
Weakness / dates
CWE-94
Published 2026-09-18 · modified 2026-09-18
Description
Icinga 2 is an open source monitoring system. From 2.4 until 2.14.9, 2.15.4, and 2.16.2, the /v1/objects API writes attacker-controlled template names into generated configuration without escaping them. An authenticated ApiUser with an objects/create/* permission can inject Icinga 2 DSL configuration, escape the intended object, create additional objects, and exceed the user's assigned privileges. This issue is fixed in versions 2.14.9, 2.15.4, and 2.16.2.
References
- https://github.com/Icinga/icinga2/commit/125b7734e84d03f09b79d36c270152b11629a8c5
- https://github.com/Icinga/icinga2/commit/af4b36e6464b9b214bed270a53d6474cf91eb441
- https://github.com/Icinga/icinga2/commit/eec0d90e8303376fe772b3e4a04e3b064a44cf30
- https://github.com/Icinga/icinga2/commit/faf0450962ad678397991cfdf041810feafa71e7
- https://github.com/Icinga/icinga2/pull/10910
- https://github.com/Icinga/icinga2/releases/tag/v2.14.9
- https://github.com/Icinga/icinga2/releases/tag/v2.15.4
- https://github.com/Icinga/icinga2/releases/tag/v2.16.2
- https://github.com/Icinga/icinga2/security/advisories/GHSA-jgqj-x5j9-vgcm
- https://icinga.com/blog/icinga2-security-release-v2-16-2