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.
Metrics
Affected Vendors & Products
References
History
Tue, 31 Mar 2026 14:15:00 +0000
| Type | Values Removed | Values Added |
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ssvc
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Mon, 30 Mar 2026 08:15:00 +0000
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| First Time appeared |
Redhat build Of Apache Camel - Hawtio
Redhat build Of Apache Camel For Spring Boot Redhat data Grid Redhat fuse Redhat jboss Enterprise Application Platform Expansion Pack Redhat process Automation |
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| Vendors & Products |
Redhat build Of Apache Camel - Hawtio
Redhat build Of Apache Camel For Spring Boot Redhat data Grid Redhat fuse Redhat jboss Enterprise Application Platform Expansion Pack Redhat process Automation |
Fri, 27 Mar 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
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| 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. | |
| Title | Undertow: undertow: request smuggling via `\r\r\r` as a header block terminator | |
| First Time appeared |
Redhat
Redhat apache Camel Hawtio Redhat camel Spring Boot Redhat enterprise Linux Redhat jboss Data Grid Redhat jboss Enterprise Application Platform Redhat jboss Enterprise Bpms Platform Redhat jboss Fuse Redhat jbosseapxp Redhat red Hat Single Sign On |
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| Weaknesses | CWE-444 | |
| CPEs | cpe:/a:redhat:apache_camel_hawtio:4 cpe:/a:redhat:camel_spring_boot:4 cpe:/a:redhat:jboss_data_grid:8 cpe:/a:redhat:jboss_enterprise_application_platform:7 cpe:/a:redhat:jboss_enterprise_application_platform:8 cpe:/a:redhat:jboss_enterprise_bpms_platform:7 cpe:/a:redhat:jboss_fuse:7 cpe:/a:redhat:jbosseapxp cpe:/a:redhat:red_hat_single_sign_on:7 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat apache Camel Hawtio Redhat camel Spring Boot Redhat enterprise Linux Redhat jboss Data Grid Redhat jboss Enterprise Application Platform Redhat jboss Enterprise Bpms Platform Redhat jboss Fuse Redhat jbosseapxp Redhat red Hat Single Sign On |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published: 2026-03-27T16:13:05.108Z
Updated: 2026-03-31T13:27:54.878Z
Reserved: 2026-02-27T04:42:16.439Z
Link: CVE-2026-28367
Updated: 2026-03-31T13:27:49.899Z
Status : Awaiting Analysis
Published: 2026-03-27T17:16:27.750
Modified: 2026-03-30T13:26:29.793
Link: CVE-2026-28367
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