Keycloak: keycloak policy enforcer: authorization bypass via incorrect uri comparison_CVE-2026-9800

{
    "lastseen": "",
    "description": "A flaw was found in Keycloak Policy Enforcer. This vulnerability allows any authenticated user to bypass all authorization policies, including role, scope, and User-Managed Access (UMA) permission checks. By including the configured access-denied page path within a request URL, either as a path segment or a query parameter, an attacker can gain unauthorized access to protected resources.",
    "published": "2026-06-25T16:16:27.069Z",
    "modified": "2026-06-25T17:29:38.796Z",
    "type": "cve",
    "title": "Keycloak: keycloak policy enforcer: authorization bypass via incorrect uri comparison",
    "source": "redhat",
    "references": "https://access.redhat.com/security/cve/CVE-2026-9800\nhttps://bugzilla.redhat.com/show_bug.cgi?id=2482472",
    "id": "CVE-2026-9800",
    "bulletinFamily": "",
    "cwe": [
        "CWE-1025"
    ],
    "cvelist": null,
    "sourceData": "",
    "sourceHref": "",
    "cvss": {
        "score": 8.1,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
        "version": "3.1"
    },
    "cvss2": [],
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        "baseScore": 0,
        "baseSeverity": "",
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        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Red Hat Build of Keycloak",
    "version": "",
    "vendor": "Red Hat",
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    "ai_score": 0
}