| Package | Affected versions | Patched versions |
|---|---|---|
| io.undertow:undertow-core | < 2.2.0.Final | 2.2.0.Final |
| jboss enterprise application platform | = 7.2= 7.3= 7.4 | |
| undertow | < 2.2.0 | 2.2.0 |
A flaw was discovered in all versions of Undertow before Undertow 2.2.0.Final, where HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from request other than their own.
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