CVE-2026-8833

CVE-2026-8833

Improper neutralization of HTML-encoded characters in the URL validation function in Checkmk <2.5.0p5, <2.4.0p31, <2.3.0p48, and all 2.2.0 versions allows an authenticated user to bypass URL validation and inject malicious URLs such as jav…

Vulnerability class: XSS (Cross-Site Scripting)

Weakness classification (CWE)

References