{"cve":"CVE-2017-5651","nvd":{"published":"2017-04-17T16:59:00.477","modified":"2026-06-17T01:20:57.820","status":"Modified","description":"In Apache Tomcat 9.0.0.M1 to 9.0.0.M18 and 8.5.0 to 8.5.12, the refactoring of the HTTP connectors introduced a regression in the send file processing. If the send file processing completed quickly, it was possible for the Processor to be added to the processor cache twice. This could result in the same Processor being used for multiple requests which in turn could lead to unexpected errors and/or response mix-up.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":[],"references":["http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html","http://www.securityfocus.com/bid/97544","http://www.securitytracker.com/id/1038219","https://bz.apache.org/bugzilla/show_bug.cgi?id=60918","https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E"],"products":["apache:tomcat"],"source":"nvd","synced_at":"2026-10-19T20:42:09.859288039+00:00"},"epss":{"cve":"CVE-2017-5651","score":0.07752,"percentile":0.94636,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-9hg2-395j-83rm","url":"https://osv.dev/vulnerability/GHSA-9hg2-395j-83rm","summary":"Expected Behavior Violation in Apache Tomcat","modified":"2024-04-18T17:16:24.017955Z","packages":[{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat-coyote","purl":"pkg:maven/org.apache.tomcat/tomcat-coyote","ranges":[">=9.0.0.M1 <9.0.0.M19"],"fixed":["9.0.0.M19"]},{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat-coyote","purl":"pkg:maven/org.apache.tomcat/tomcat-coyote","ranges":[">=8.5.0 <8.5.13"],"fixed":["8.5.13"]},{"ecosystem":"Maven","name":"org.apache.tomcat.embed:tomcat-embed-core","purl":"pkg:maven/org.apache.tomcat.embed/tomcat-embed-core","ranges":[">=9.0.0.M1 <9.0.0.M19"],"fixed":["9.0.0.M19"]},{"ecosystem":"Maven","name":"org.apache.tomcat.embed:tomcat-embed-core","purl":"pkg:maven/org.apache.tomcat.embed/tomcat-embed-core","ranges":[">=8.5.0 <8.5.13"],"fixed":["8.5.13"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}