High severity · published Sep 18, 2026
CVE-2026-61552
Icinga 2 DSL Injection via Unescaped Import Template Name
7.2
CVSS
0.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IC
icinga2 · Icinga
>= 2.4, < 2.14.9; >= 2.15.0, < 2.15.4; >= 2.16.0, < 2.16.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-61552
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-61552
github.com
https://github.com/Icinga/icinga2/commit/125b7734e84d03f09b79d36c270152b11629a8c5
github.com
https://github.com/Icinga/icinga2/commit/af4b36e6464b9b214bed270a53d6474cf91eb441
github.com
https://github.com/Icinga/icinga2/commit/eec0d90e8303376fe772b3e4a04e3b064a44cf30
github.com
https://github.com/Icinga/icinga2/commit/faf0450962ad678397991cfdf041810feafa71e7
github.com
https://github.com/Icinga/icinga2/pull/10910
github.com
https://github.com/Icinga/icinga2/releases/tag/v2.14.9
More from icinga2
9.8
CVE-2026-61550
Icinga 2: Improper access control for JSON-RPC update certificate messages
9.8
CVE-2025-48057
Icinga 2 certificate renewal might incorrectly renew an invalid certificate
9.8
CVE-2024-49369
Icinga 2 has a TLS Certificate Validation Bypass for JSON-RPC and HTTP API Connections
8.6
CVE-2026-61551
Icinga 2: Stack overflow via deeply nested JSON objects
6.5
CVE-2025-61908
Icinga 2 Denial of Service (DoS) By Dereferencing Invalid Reference