CVE-2022-42252

HIGH

Apache Tomcat 8.5.0-8.5.82, 9.0.0-M1-9.0.67, 10.0.0-M1-10.0.26, 10.1.0-M1-10.1.0 - HTTP Request Smuggling

Title source: llm
STIX 2.1

Description

If Apache Tomcat 8.5.0 to 8.5.82, 9.0.0-M1 to 9.0.67, 10.0.0-M1 to 10.0.26 or 10.1.0-M1 to 10.1.0 was configured to ignore invalid HTTP headers via setting rejectIllegalHeader to false (the default for 8.5.x only), Tomcat did not reject a request containing an invalid Content-Length header making a request smuggling attack possible if Tomcat was located behind a reverse proxy that also failed to reject the request with the invalid header.

References (2)

Core 2

Scores

CVSS v3 7.5
EPSS 0.0145
EPSS Percentile 69.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-444
Status published
Products (3)
apache/tomcat 8.5.0 - 8.5.83
org.apache.tomcat/tomcat-coyote 9.0.0-M1 - 9.0.68Maven
org.apache.tomcat.embed/tomcat-embed-core 8.5.0 - 8.5.83Maven
Published Nov 01, 2022
Tracked Since Feb 18, 2026