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CVE-2026-28367

Undertow: undertow: request smuggling via `\r\r\r` as a header block terminator PUBLISHED

Description (CNA)

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 (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 9unaffected
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.