CVE-2025-12543

CRITICAL

9.6

Beschreibung

A flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to properly validate the Host header in incoming HTTP requests.As a result, requests containing malformed or malicious Host headers are processed without rejection, enabling attackers to poison caches, perform internal network scans, or hijack user sessions.

CVE Details

CVSS v3.1 Bewertung9.6

SchweregradCRITICAL

CVSS VektorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionREQUIRED

Veroffentlicht1/7/2026

Zuletzt geandert3/18/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

redhat:build_of_apache_camelredhat:data_gridredhat:fuseredhat:jboss_enterprise_application_platformredhat:jboss_enterprise_application_platform_expansion_packredhat:process_automationredhat:single_sign-onredhat:undertow