Description
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.
References (3)
Scores
CVSS v3
4.8
EPSS
0.0012
EPSS Percentile
31.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Details
CWE
CWE-444
Status
published
Products (7)
io.undertow/undertow-core
0 - 2.2.0.FinalMaven
redhat/jboss_enterprise_application_platform
redhat/jboss_enterprise_application_platform
7.2
redhat/jboss_enterprise_application_platform
7.3
redhat/jboss_enterprise_application_platform
7.4
redhat/single_sign-on
redhat/undertow
< 2.2.0
Published
Sep 23, 2020
Tracked Since
Feb 18, 2026