{
    "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\u00a0from 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 Tomcat",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<=",
                                            "version_name": "11.0.0-M1",
                                            "version_value": "11.0.0-M11"
                                        },
                                        {
                                            "version_affected": "<=",
                                            "version_name": "10.1.0-M1",
                                            "version_value": "10.1.13"
                                        },
                                        {
                                            "version_affected": "<=",
                                            "version_name": "9.0.0-M1",
                                            "version_value": "9.0.81"
                                        },
                                        {
                                            "version_affected": "<=",
                                            "version_name": "8.5.0",
                                            "version_value": "8.5.93"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp",
                "refsource": "MISC",
                "name": "https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp"
            },
            {
                "url": "http://www.openwall.com/lists/oss-security/2023/10/10/10",
                "refsource": "MISC",
                "name": "http://www.openwall.com/lists/oss-security/2023/10/10/10"
            },
            {
                "url": "https://www.debian.org/security/2023/dsa-5522",
                "refsource": "MISC",
                "name": "https://www.debian.org/security/2023/dsa-5522"
            },
            {
                "url": "https://www.debian.org/security/2023/dsa-5521",
                "refsource": "MISC",
                "name": "https://www.debian.org/security/2023/dsa-5521"
            },
            {
                "url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html",
                "refsource": "MISC",
                "name": "https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html"
            },
            {
                "url": "https://security.netapp.com/advisory/ntap-20231103-0007/",
                "refsource": "MISC",
                "name": "https://security.netapp.com/advisory/ntap-20231103-0007/"
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.1.0-dev"
    },
    "source": {
        "discovery": "EXTERNAL"
    },
    "credits": [
        {
            "lang": "en",
            "value": "Keran Mu and Jianjun Chen from Tsinghua University and Zhongguancun Laboratory"
        }
    ]
}