Input validation error in Icinga - #VU135837
Published: June 29, 2026
Vulnerability identifier: #VU135837
CSH Severity: Low
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to escalate privileges.
The vulnerability exists due to improper input validation in the /v1/objects API endpoint when writing template names to generated configuration files. A remote privileged user can submit a specially crafted request to escalate privileges.
Exploitation is limited to API users with permission to create configuration objects.
Affected software
Icinga
Remediation
Install security update from vendor's website.
Icinga - addressed in versions 2.14.9, 2.15.4, 2.16.2