VULNERABILITY INTELLIGENCE

CVE-2022-42252

CVSS score7.5 HIGH
EPSS probability1.78%
CISA KEVNot currently listed
Published2022-11-01
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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.

Weakness classification

  • security@apache.org: CWE-444
  • nvd@nist.gov: CWE-444
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-444

Primary references