{"api_version":"1","generated_at":"2026-04-22T23:09:20+00:00","cve":"CVE-2023-45648","urls":{"html":"https://cve.report/CVE-2023-45648","api":"https://cve.report/api/cve/CVE-2023-45648.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-45648","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-45648"},"summary":{"title":"CVE-2023-45648","description":"Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially \ncrafted, invalid trailer header could cause Tomcat to treat a single \nrequest as multiple requests leading to the possibility of request \nsmuggling when behind a reverse proxy.\n\nUsers are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue.","state":"PUBLIC","assigner":"security@apache.org","published_at":"2023-10-10 19:15:00","updated_at":"2023-11-04 06:15:00"},"problem_types":["CWE-20"],"metrics":[],"references":[{"url":"http://www.openwall.com/lists/oss-security/2023/10/10/10","name":"http://www.openwall.com/lists/oss-security/2023/10/10/10","refsource":"MISC","tags":[],"title":"oss-security - CVE-2023-45648: Apache Tomcat: Trailer header parsing too lenient","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.debian.org/security/2023/dsa-5522","name":"https://www.debian.org/security/2023/dsa-5522","refsource":"MISC","tags":[],"title":"Debian -- Security Information -- DSA-5522-1 tomcat9","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp","name":"https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp","refsource":"MISC","tags":[],"title":"","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html","name":"https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html","refsource":"MISC","tags":[],"title":"[SECURITY] [DLA 3617-1] tomcat9 security update","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://security.netapp.com/advisory/ntap-20231103-0007/","name":"https://security.netapp.com/advisory/ntap-20231103-0007/","refsource":"MISC","tags":[],"title":"October 2023 Apache Tomcat Vulnerabilities in NetApp Products | NetApp Product Security","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.debian.org/security/2023/dsa-5521","name":"https://www.debian.org/security/2023/dsa-5521","refsource":"MISC","tags":[],"title":"Debian -- Security Information -- DSA-5521-1 tomcat10","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-45648","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-45648","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2023","cve_id":"45648","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"45648","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"10.1.0","cpe7":"milestone1","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"45648","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"10.1.0","cpe7":"milestone10","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"45648","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"10.1.0","cpe7":"milestone11","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"45648","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"10.1.0","cpe7":"milestone12","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"45648","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"10.1.0","cpe7":"milestone13","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"45648","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"10.1.0","cpe7":"milestone14","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"45648","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"10.1.0","cpe7":"milestone15","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"45648","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"10.1.0","cpe7":"milestone16","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"45648","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"10.1.0","cpe7":"milestone17","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"45648","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"10.1.0","cpe7":"milestone18","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"45648","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"10.1.0","cpe7":"milestone19","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"45648","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"10.1.0","cpe7":"milestone2","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"45648","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"10.1.0","cpe7":"milestone20","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"45648","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"10.1.0","cpe7":"milestone3","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"45648","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"10.1.0","cpe7":"milestone4","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"45648","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"10.1.0","cpe7":"milestone5","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"45648","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"10.1.0","cpe7":"milestone6","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"45648","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"10.1.0","cpe7":"milestone7","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023"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Tomcat Multiple Vulnerabilities (CVE-2023-42795, CVE-2023-44487, CVE-2023-45648)"},{"cve":"CVE-2023-45648","qid":"161276","title":"Oracle Enterprise Linux Security Update for tomcat (ELSA-2024-0125)"},{"cve":"CVE-2023-45648","qid":"161315","title":"Oracle Enterprise Linux Security Update for tomcat (ELSA-2024-0474)"},{"cve":"CVE-2023-45648","qid":"20399","title":"Oracle Database 19c Critical OJVM Patch Update - January 2024"},{"cve":"CVE-2023-45648","qid":"20400","title":"Oracle Database 19c Critical Patch Update - January 2024"},{"cve":"CVE-2023-45648","qid":"20401","title":"Oracle Database 21c Critical Patch Update - January 2024"},{"cve":"CVE-2023-45648","qid":"242835","title":"Red Hat Update for tomcat (RHSA-2024:0474)"},{"cve":"CVE-2023-45648","qid":"242881","title":"Red Hat Update for tomcat (RHSA-2024:0125)"},{"cve":"CVE-2023-45648","qid":"296106","title":"Oracle Solaris 11.4 Support Repository Update (SRU) 64.157.2 Missing 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(ALSA-2024:0125)"},{"cve":"CVE-2023-45648","qid":"941551","title":"AlmaLinux Security Update for tomcat (ALSA-2024:0474)"},{"cve":"CVE-2023-45648","qid":"995546","title":"Java (Maven) Security Update for org.apache.tomcat:tomcat (GHSA-r6j3-px5g-cq3x)"}]},"source_records":{"cve_program":{"data_version":"4.0","data_type":"CVE","data_format":"MITRE","CVE_data_meta":{"ID":"CVE-2023-45648","ASSIGNER":"security@apache.org","STATE":"PUBLIC"},"description":{"description_data":[{"lang":"eng","value":"Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially \ncrafted, invalid trailer header could cause Tomcat to treat a single \nrequest as multiple requests leading to the possibility of request \nsmuggling when behind a reverse proxy.\n\nUsers are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue.\n\n"}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-20 Improper Input Validation","cweId":"CWE-20"}]}]},"affects":{"vendor":{"vendor_data":[{"vendor_name":"Apache Software Foundation","product":{"product_data":[{"product_name":"Apache 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