Summary
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Undertow ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Daten zu manipulieren und vertrauliche Informationen offenzulegen.
Product
Undertow ist ein Webserver, der als leichtgewichtige und flexible Lösung für moderne Webanwendungen konzipiert ist.
Vulnerabilities 3
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High 8.7
Undertow: undertow: request smuggling via `\r\r\r` as a header block terminator
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 Clou…
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High 8.7
Undertow: undertow: request smuggling via inconsistent header parsing
A flaw was found in Undertow. This vulnerability allows a remote attacker to construct specially crafted requests where header names are parsed differently by Undertow compared to upstream proxies. This discrepancy in header interpretation can be exploited to…
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High 8.7
Undertow: undertow: request smuggling via malformed http request headers
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 explo…
Revision history
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#2
Neue Updates von Red Hat aufgenommen
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#1
Initiale Fassung
References
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Red Hat Bugzilla vom 2026-03-29
https://bugzilla.redhat.com/show_bug.cgi?id=2443260
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Red Hat Bugzilla vom 2026-03-29
https://bugzilla.redhat.com/show_bug.cgi?id=2443261
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Red Hat Bugzilla vom 2026-03-29
https://bugzilla.redhat.com/show_bug.cgi?id=2443262
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Red Hat Security Advisory RHSA-2026:25126 vom 2026-06-10
https://access.redhat.com/errata/RHSA-2026:25126
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Red Hat Security Advisory RHSA-2026:25125 vom 2026-06-10
https://access.redhat.com/errata/RHSA-2026:25125