CVE Feed

    Dashboard / CVE / CVE-2026-9800

    CVE-2026-9800

    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:Jun 25, 2026
    Last Modified:Aug 5, 2026
    EPS:Jun 25, 2026
    EPSS Score:0.00308
    CVSS Score:8.1

    Affected Products

    Vendor
    Redhat
    Product
    Build Keycloak
    Vendor
    Redhat
    Product
    Build Of Keycloak
    Vendor
    Redhat
    Product
    Jbosseapxp
    Vendor
    Redhat
    Product
    Quarkus
    Vendor
    Redhat
    Product
    Red Hat Single Sign On

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-1025 Comparison Using Wrong Factors

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-89298 (CVSS 4.9) — A flaw was found in the Dynamic Client Registration service of Keycloak, an open-source identity and access ma…
    CVE-2026-88770 (CVSS 6.5) — A flaw was found in the Device Authorization Grant flow of Keycloak, an identity and access management solutio…
    CVE-2026-19729 (CVSS 4.9) — A flaw was found in the key provider component of the keycloak-services library, which is the core engine for …
    CVE-2026-17615 (CVSS 7.5) — A flaw was found in RESTEasy's SourceProvider. This vulnerability allows an unauthenticated attacker to perfor…
    CVE-2026-82968 (CVSS 6.4) — A flaw was found in the first-broker-login flow of the Keycloak identity management service. When a user links…
    CVE-2026-19611 (CVSS 7.4) — A flaw was found in WildFly Elytron. Password hashing and verification normalize input with Unicode NFKC, whic…
    CVE-2026-15571 (CVSS 7.3) — A flaw was found in the legacy client-initiated account-linking endpoint of Keycloak, a widely used open-sourc…
    CVE-2026-79652 (CVSS 5.9) — A flaw was found in the JWT Bearer authorization grant implementation within the keycloak-services component o…
    CVE-2026-18963 (CVSS 9.1) — A flaw was found in the reset-credentials flow of the keycloak-services component, which is the core engine fo…
    CVE-2026-19608 (CVSS 5.3) — A flaw was found in the group policy provider of Keycloak authorization services, which is used to manage fine…

    References

    https://access.redhat.com/errata/RHSA-2026:30049
    https://access.redhat.com/errata/RHSA-2026:30050
    https://access.redhat.com/errata/RHSA-2026:30083
    https://access.redhat.com/errata/RHSA-2026:30084
    https://access.redhat.com/errata/RHSA-2026:50846
    https://access.redhat.com/errata/RHSA-2026:50847
    https://access.redhat.com/security/cve/CVE-2026-9800
    https://bugzilla.redhat.com/show_bug.cgi?id=2482472
    https://access.redhat.com/errata/RHSA-2026:30049
    https://access.redhat.com/errata/RHSA-2026:30050
    https://access.redhat.com/errata/RHSA-2026:30083
    https://access.redhat.com/errata/RHSA-2026:30084
    https://access.redhat.com/errata/RHSA-2026:50846
    https://access.redhat.com/errata/RHSA-2026:50847
    https://access.redhat.com/security/cve/CVE-2026-9800
    https://bugzilla.redhat.com/show_bug.cgi?id=2482472
    https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-9800.json

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-9800 — Redhat (High 8.1) | CVE-DB