CVE Feed

    Dashboard / CVE / CVE-2026-92856

    CVE-2026-92856

    A flaw was found in the SAML brokering component of Keycloak, an identity and access management solution. The issue occurs when Keycloak acts as an intermediary between an upstream identity provider and downstream services. Keycloak fails to respect specific security instructions called ProxyRestrictions in the login messages it receives. This allows a user to log into downstream services even when the original identity provider explicitly forbade further sharing of the login session. As a result, users can bypass security boundaries intended to limit where their identity can be used.

    Published:Nov 5, 2026
    Last Modified:Nov 6, 2026
    EPS:Nov 6, 2026
    EPSS Score:0.00196
    CVSS Score:4.9

    Affected Products

    Vendor
    Redhat
    Product
    Build Keycloak
    Vendor
    Redhat
    Product
    Red Hat Single Sign On

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-862 Missing Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

    Related CVEs

    CVE-2026-120984 (CVSS 9.1) — A flaw was found in the Keycloak server's client management component. When a client is created or imported wi…
    CVE-2026-9797 (CVSS 6.5) — A flaw was found in Keycloak's administrative services (org.keycloak.services.resources.admin). A highly privi…
    CVE-2026-110932 (CVSS 7.5) — A flaw was found in the theme resource endpoint of Keycloak, an open-source identity and access management sol…
    CVE-2026-107912 (CVSS 7.7) — A flaw was found in the management interface of the Quarkus framework, specifically within the quarkus-vertx-h…
    CVE-2026-110931 (CVSS 7.5) — A flaw was found in the SAML 1.1 assertion parser of Keycloak, a tool used for identity and access management.…
    CVE-2026-92855 (CVSS 7.4) — A flaw was found in the SAML identity broker component of Keycloak, which is used to delegate authentication t…
    CVE-2026-96547 (CVSS 6.5) — A flaw was found in the Dynamic Client Registration component of Keycloak, an open-source identity and access …
    CVE-2026-97367 (CVSS 6.4) — A flaw was found in the Keycloak Account REST API where it incorrectly handles session identification. A malic…
    CVE-2026-96453 (CVSS 8) — A flaw was found in the Keycloak Admin CLI kcadm tool, which is used by administrators to manage Keycloak serv…
    CVE-2026-96447 (CVSS 4.2) — A flaw was found in the TokenManager component of Keycloak, an open-source identity and access management solu…

    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