CVE-2024-14006

Medium

Description

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, which may facilitate phishing of credentials, account recovery link hijacking, and web cache poisoning.

SeverityMedium

CVSS6.1

Exploit probability—

ProductNagios Xi

PublishedOct 30, 2025

First seenOct 30, 2025

Weakness typeCWE-346CWE-346

How to fix

Update

nagios nagios_xi2024 or later

Patches

nagios.com/products/security/#nagios-xi
nagios.com/changelog/nagios-xi/

Affected products

Product	Affected versions	Fixed in
nagios nagios_xi	v < 2024, 2024	2024

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