Nagios XI < 2024R1.2.2 Host Header Injection
Nagios XI versions prior to 2024R1.2.2 contain a host header injection vulnerability. The application trusts the user-supplied HTTP Host header when constructing absolute URLs without sufficient validation. An unauthenticated, remote attacker can supply a crafted Host header to poison generated links or responses, whic…
Severity high: primary CNA CVSS 8.8 v4.0 (worst CNA-provided scenario) Not listed in this KEV snapshot. Forecast present in this snapshot.
Published 2025-10-30T21:38:42.351Z. Updated 2026-09-30T17:19:59.521Z.