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CVE-2026-28369

Undertow: undertow: request smuggling via malformed http request headers PUBLISHED

Description (CNA)

A flaw was found in Undertow. When Undertow receives an HTTP request where the first header line starts with one or more spaces, it incorrectly processes the request by stripping these leading spaces. This behavior, which violates HTTP standards, can be exploited by a remote attacker to perform request smuggling. Request smuggling allows an attacker to bypass security mechanisms, access restricted information, or manipulate web caches, potentially leading to unauthorized actions or data exposure.

Affected (CNA)

Vendor / productVersions
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1.6unaffected 2.3.24.SP2-redhat-00001 before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8unaffected 0:2.40.0-7.redhat_00015.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8unaffected 0:801.6.1-1.GA_redhat_00001.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8unaffected 0:2.3.24-3.SP2_redhat_00001.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8unaffected 0:8.1.6-7.GA_redhat_00010.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9unaffected 0:2.40.0-7.redhat_00015.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9unaffected 0:801.6.1-1.GA_redhat_00001.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9unaffected 0:2.3.24-3.SP2_redhat_00001.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9unaffected 0:8.1.6-7.GA_redhat_00010.1.el9eap before *
Red Hat / Red Hat build of Apache Camel for Spring Boot 4affected
Red Hat / Red Hat build of Apache Camel - HawtIO 4unaffected
Red Hat / Red Hat Data Grid 8affected
Red Hat / Red Hat Enterprise Linux 10unaffected
Red Hat / Red Hat Enterprise Linux 8unaffected
Red Hat / Red Hat Enterprise Linux 8unaffected
Red Hat / Red Hat Enterprise Linux 9affected
Red Hat / Red Hat Fuse 7affected
Red Hat / Red Hat JBoss Enterprise Application Platform 7affected
Red Hat / Red Hat JBoss Enterprise Application Platform 8affected
Red Hat / Red Hat JBoss Enterprise Application Platform 8affected
Red Hat / Red Hat JBoss Enterprise Application Platform Expansion Packaffected
Red Hat / Red Hat JBoss Enterprise Application Platform Expansion Packaffected
Red Hat / Red Hat JBoss Enterprise Application Platform Expansion Packunaffected
Red Hat / Red Hat Process Automation 7affected
Red Hat / Red Hat Single Sign-On 7affected

CWE

CWE-444

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.