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.
Metrics
Affected Vendors & Products
References
History
Mon, 30 Mar 2026 08:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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 |
Sun, 29 Mar 2026 14:15:00 +0000
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| Metrics |
ssvc
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Fri, 27 Mar 2026 16:45:00 +0000
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| Description | 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. | |
| Title | Undertow: undertow: request smuggling via malformed http request headers | |
| 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: 2026-03-27T16:13:05.719Z
Updated: 2026-03-30T02:31:22.322Z
Reserved: 2026-02-27T04:42:16.439Z
Link: CVE-2026-28369
Updated: 2026-03-29T13:56:07.822Z
Status : Received
Published: 2026-03-27T17:16:28.240
Modified: 2026-03-27T17:16:28.240
Link: CVE-2026-28369
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