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CVE-2026-28367

HIGH CVSS: 8.7 Published: 2026-03-27 Modified: 2026-06-29

Description

A flaw was found in Undertow. A remote attacker can exploit this vulnerability by sending `\r\r\r` as a header block terminator. This can be used for request smuggling with certain proxy servers, such as older versions of Apache Traffic Server and Google Cloud Classic Application Load Balancer, potentially leading to unauthorized access or manipulation of web requests.

Affected Platforms

Redhat UndertowRedhat Build Of Apache Camel - HawtioRedhat Process AutomationRedhat Build Of Apache Camel For Spring BootRedhat Jboss Enterprise Application Platform Expansion PackRedhat Single Sign-OnRedhat FuseRedhat Data GridRedhat Jboss Enterprise Application Platform

Weakness Type

CWE-444

References