{"id":"CVE-2022-42252","published":"2022-11-01T00:00:00Z","modified":"2025-05-06T15:09:20Z","title":"Apache Tomcat request smuggling via malformed content-length","vendor":"Apache","product":"Apache Tomcat","tier":"tail","description":{"text":"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.","provenance":"source","from":"CVE.org"},"cvss":{"score":7.5,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","provenance":"source","from":"CISA ADP Vulnrichment"},"epss":{"score":0.0178,"percentile":0.78221,"provenance":"source"},"cwes":[{"id":"CWE-444","name":"Inconsistent Interpretation of HTTP Requests"}],"references":[{"url":"https://lists.apache.org/thread/zzcxzvqfdqn515zfs3dxb7n8gty589sq","tags":[]},{"url":"https://security.gentoo.org/glsa/202305-37","tags":[]}],"priority":{"score":20.9,"factors":[{"name":"EPSS percentile","points":15.64},{"name":"CVSS severity","points":5.25}]},"vendorSlug":"apache","affectedVersions":[{"vendor":"Apache Software Foundation","product":"Apache Tomcat","versions":[">= 10.1.0-M1, <= 10.1.0",">= 10.0.0-M1, <= 10.0.26",">= 9.0.0-M1, <= 9.0.67",">= 8.5.0, <= 8.5.82"]}],"affected":[{"ecosystem":"Maven","package":"org.apache.tomcat.embed:tomcat-embed-core","vulnerableRanges":[">=8.5.0, <8.5.83",">=9.0.0-M1, <9.0.68",">=10.0.0-M1, <10.0.27",">=10.1.0-M1, <10.1.1"],"patched":["8.5.83","9.0.68","10.0.27","10.1.1"],"from":["GHSA-p22x-g9px-3945"],"provenance":"source"},{"ecosystem":"Maven","package":"org.apache.tomcat:tomcat-coyote","vulnerableRanges":[">=9.0.0-M1, <9.0.68",">=10.0.0-M1, <10.0.27",">=10.1.0-M1, <10.1.1"],"patched":["9.0.68","10.0.27","10.1.1"],"from":["GHSA-p22x-g9px-3945"],"provenance":"source"}],"euvd":{"id":"EUVD-2022-7390","exploited":false,"provenance":"source"},"lineage":{"familyId":"fam-apache-tomcat-cve-2011-0534","parents":[{"from":"CVE-2016-6816","to":"CVE-2022-42252","relation":"related","confidence":"medium","kind":"lineage","evidence":[{"kind":"same-code","provenance":"machine","files":["java/org/apache/coyote/http11/Http11InputBuffer.java"],"commits":["https://github.com/apache/tomcat/commit/516bda676ac8d0284da3e0295a7df70391315360","https://github.com/apache/tomcat/commit/cdc0a935c2173aff60039a0b85e57a461381107c","https://github.com/apache/tomcat/commit/0d089a15047faf9cb3c82f80f4d28febd4798920","https://github.com/apache/tomcat/commit/4c7f4fd09d2cc1692112ef70b8ee23a7a037ae77"],"basis":"shared function","functions":["parseHeader"]}]}],"children":[{"from":"CVE-2022-42252","to":"CVE-2023-45648","relation":"related","confidence":"medium","kind":"lineage","evidence":[{"kind":"same-code","provenance":"machine","files":["java/org/apache/coyote/http11/Http11InputBuffer.java"],"commits":["https://github.com/apache/tomcat/commit/0d089a15047faf9cb3c82f80f4d28febd4798920","https://github.com/apache/tomcat/commit/4c7f4fd09d2cc1692112ef70b8ee23a7a037ae77","https://github.com/apache/tomcat/commit/59583245639d8c42ae0009f4a4a70464d3ea70a0","https://github.com/apache/tomcat/commit/8ecff306507be8e4fd3adee1ae5de1ea6661a8f4"],"basis":"shared function","functions":["parseHeader"]}]}],"packageHistory":[{"cve":"CVE-2020-9484","published":"2020-05-20","fixed":"10.0.0-M5","kev":false},{"cve":"CVE-2021-25122","published":"2021-03-01","fixed":"10.0.2","kev":false,"link":{"from":"CVE-2021-25122","to":"CVE-2022-42252","relation":"successor","confidence":"low","kind":"sequence","evidence":[{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat.embed:tomcat-embed-core","fromFixed":"10.0.2","toFixed":"10.0.27","daysApart":610},{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat:tomcat-coyote","fromFixed":"10.0.2","toFixed":"10.0.27","daysApart":610}]}},{"cve":"CVE-2021-25329","published":"2021-03-01","fixed":"10.0.2","kev":false},{"cve":"CVE-2022-42252","published":"2022-11-01","fixed":"10.1.1","kev":false},{"cve":"CVE-2022-45143","published":"2023-01-03","fixed":"10.1.2","kev":false,"link":{"from":"CVE-2022-42252","to":"CVE-2022-45143","relation":"successor","confidence":"low","kind":"sequence","evidence":[{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat.embed:tomcat-embed-core","fromFixed":"8.5.83","toFixed":"8.5.84","daysApart":63},{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat.embed:tomcat-embed-core","fromFixed":"9.0.68","toFixed":"9.0.69","daysApart":63}]}},{"cve":"CVE-2023-41080","published":"2023-08-25","fixed":"11.0.0-M11","kev":false},{"cve":"CVE-2023-46589","published":"2023-11-28","fixed":"11.0.0-M11","kev":false},{"cve":"CVE-2023-24998","published":"2023-02-20","fixed":"11.0.0-M5","kev":false,"link":{"from":"CVE-2022-42252","to":"CVE-2023-24998","relation":"successor","confidence":"low","kind":"sequence","evidence":[{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat:tomcat-coyote","fromFixed":"9.0.68","toFixed":"9.0.71","daysApart":111},{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat:tomcat-coyote","fromFixed":"10.1.1","toFixed":"10.1.5","daysApart":111}]}}],"package":"Maven:org.apache.tomcat.embed:tomcat-embed-core"}}