Bug 2571832 (CVE-2026-61637)

Summary: CVE-2026-61637 icingaweb2: icingaweb2: Open redirect via crafted URL
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerability-draftAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: low    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in Icinga Web 2. A remote attacker can craft a malicious link that, when visited by an authenticated user with a non-default locale setting, redirects the user to an arbitrary external web address. This open redirect flaw can be exploited to conduct phishing attacks and mislead users into accessing untrusted sites.
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Description OSIDB Bzimport 2026-11-11 18:31:25 UTC 
Icinga Web 2 is an open source monitoring web interface, framework and command-line interface. Prior to versions 2.12.7 and 2.13.1, an attacker can craft a URL that, once visited by an authenticated user (or one that is able to authenticate), allows to manipulate the backend to redirect the user to any location. For this to succeed, the victim's locale in Icinga Web must be different from en_US. This issue has been patched in versions 2.12.7 and 2.13.1.