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.
{ "nvd_published_at": "2022-11-01T09:15:00Z", "cwe_ids": [ "CWE-20", "CWE-444" ], "severity": "HIGH", "github_reviewed": true, "github_reviewed_at": "2022-11-01T18:37:42Z" }