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CVE-2026-28367

nvd nist
Published: Mar 27, 2026Modified: Jun 29, 2026

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9.1
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Exploitability: 3.9 / Impact: 5.2
Source: NVD

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 (10)

Redhat
9 products
Build Of Apache Camel Hawtio
Build Of Apache Camel For Spring Boot
Data Grid
Fuse
Jboss Enterprise Application Platform
Jboss Enterprise Application Platform Expansion Pack
Process Automation
Single Sign On
Undertow
Configuration A
10 vulnerable
Vulnerable SoftwareAffected Versions
Build Of Apache Camel Hawtio
Version 4.0
Build Of Apache Camel For Spring Boot
Version 4.0
Data Grid
Version 8.0
Fuse
Version 7.0.0
Redhat
Jboss Enterprise Application Platform
Version 7.0.0
Jboss Enterprise Application Platform
Version 8.0.0
Jboss Enterprise Application Platform Expansion Pack
All versions
Process Automation
Version 7.0
Single Sign On
Version 7.0
Undertow
All versions

Related CWEs

CWE-444
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.

References (4)

Source: secalert@redhat.com
Source: secalert@redhat.com
Source: secalert@redhat.com
Vendor Advisory
Source: secalert@redhat.com
Issue TrackingVendor Advisory

Timeline

No history available yet.