CVE-2022-42252CWE-444

Apache Tomcat request smuggling via malformed content-length

High · published November 1, 2022

CVSS v3.1
7.5
EPSS
2%
Percentile
75.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.01575 · 75.2th percentile
Weakness
CWE-444 · Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Published
2022-11-01T00:00Z
EPSS history
Timeline
  • 01 NOV 00:00Z
    Apache Tomcat request smuggling via malformed content-length
    cvelistv5