7.2
HIGH CVSS 3.1
CVE-2026-61552
Icinga 2 DSL Injection via Unescaped Import Template Name
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.

INFO

Published Date :

Sept. 18, 2026, 6:17 p.m.

Last Modified :

Sept. 18, 2026, 6:17 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-61552 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 HIGH [email protected]
Solution
Update Icinga 2 to a version that addresses the template injection vulnerability.
  • Update Icinga 2 to version 2.14.9 or later.
  • Update Icinga 2 to version 2.15.4 or later.
  • Update Icinga 2 to version 2.16.2 or later.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-61552 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-61552 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-61552 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-61552 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Sep. 18, 2026

    Action Type Old Value New Value
    Added 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.
    Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-94
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/61xxx/CVE-2026-61552.json">CVE-2026-61552</a>
    Added Reference https://github.com/Icinga/icinga2/commit/125b7734e84d03f09b79d36c270152b11629a8c5
    Added Reference https://github.com/Icinga/icinga2/commit/af4b36e6464b9b214bed270a53d6474cf91eb441
    Added Reference https://github.com/Icinga/icinga2/commit/eec0d90e8303376fe772b3e4a04e3b064a44cf30
    Added Reference https://github.com/Icinga/icinga2/commit/faf0450962ad678397991cfdf041810feafa71e7
    Added Reference https://github.com/Icinga/icinga2/pull/10910
    Added Reference https://github.com/Icinga/icinga2/releases/tag/v2.14.9
    Added Reference https://github.com/Icinga/icinga2/releases/tag/v2.15.4
    Added Reference https://github.com/Icinga/icinga2/releases/tag/v2.16.2
    Added Reference https://github.com/Icinga/icinga2/security/advisories/GHSA-jgqj-x5j9-vgcm
    Added Reference https://icinga.com/blog/icinga2-security-release-v2-16-2
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Sep. 18, 2026

    Action Type Old Value New Value
    Added SSVC {'id': 'CVE-2026-61552', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-18T18:05:25.228828Z'}
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.