Open redirect in Icinga Web 2 - #VU136935
Published: July 6, 2026
Vulnerability identifier: #VU136935
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-601
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: www.icinga.org
Affected software:
Icinga Web 2
Icinga Web 2
Detailed vulnerability description
The vulnerability allows a remote user to redirect users to an arbitrary site.
The vulnerability exists due to url redirection to an untrusted site in the login page when handling a crafted login URL. A remote user can craft a malicious URL to redirect users to an arbitrary site.
The victim must visit the crafted URL, and exploitation succeeds only when the victim's locale is different from en_US.
Remediation
Install security update from vendor's website.