Improper access control in Icinga - #VU144223
Published: August 18, 2026
Vulnerability identifier: #VU144223
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to improper access control in /v1/events filter expressions when handling requests to the /v1/events API endpoint. A remote privileged user can send a specially crafted request containing filter expressions to disclose sensitive information.
Exploitation requires some events/* permission that allows access to the /v1/events API endpoint.
Affected software
Icinga
Remediation
Install security update from vendor's website.
Icinga - addressed in versions 2.15.6, 2.16.5