Apache Tomcat: Digest authenticator will authenticate any unknown user_CVE-2026-43512

{
    "lastseen": "",
    "description": "DEPRECATED: Authentication Bypass Issues vulnerability in digest authentication in Apache Tomcat.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from before 7.0.0.\nOlder unsupported versions any also be affect\n\nUsers are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.",
    "published": "2026-05-12T15:24:02.424Z",
    "modified": "2026-05-14T19:53:34.555Z",
    "type": "cve",
    "title": "Apache Tomcat: Digest authenticator will authenticate any unknown user",
    "source": "apache",
    "references": "https://lists.apache.org/thread/7x09x7o12solvclslw3sz0288xc8wx73",
    "id": "CVE-2026-43512",
    "bulletinFamily": "",
    "cwe": [
        "CWE-592"
    ],
    "cvelist": null,
    "sourceData": "Apache Software Foundation Apache Tomcat 11.0.0-M1\nApache Software Foundation Apache Tomcat 10.1.0-M1\nApache Software Foundation Apache Tomcat 9.0.0.M1\nApache Software Foundation Apache Tomcat 8.5.0\nApache Software Foundation Apache Tomcat 7.0.0",
    "sourceHref": "",
    "cvss": {
        "score": 9.8,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Apache Tomcat",
    "version": "11.0.0-M1",
    "vendor": "Apache Software Foundation",
    "ai_description": "Authentication Bypass vulnerability in Apache Tomcat's digest authentication",
    "ai_severity": "Critical",
    "ai_vendor": "Apache Software Foundation",
    "ai_product": "Apache Tomcat",
    "ai_version": "11.0.0-M1, 10.1.0-M1, 9.0.0.M1, 8.5.0, 7.0.0",
    "ai_score": 9.8
}