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    CVE-2026-118947

    A flaw was found in the UMA resource registration endpoint of the keycloak-services component, which provides the core logic for Keycloak's authorization and identity services. The issue occurs when remote resource management is enabled, allowing an authenticated user with specific permissions to update resources they do not own by providing a target resource ID in a request. This can lead to unauthorized modification of resource configurations, such as names, URIs, and scopes.

    Published:Oct 28, 2026
    Last Modified:Oct 30, 2026
    EPS:Oct 30, 2026
    EPSS Score:
    CVSS Score:4.3

    Affected Products

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

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-117627 (CVSS 5.4) — A flaw was found in the JWT Authorization Grant implementation of the keycloak-services component. When an OID…
    CVE-2026-117859 (CVSS 5.4) — A flaw was found in the Pushed Authorization Request PAR implementation of the keycloak-services component. Th…
    CVE-2026-118030 (CVSS 4.2) — A flaw was found in the HOTP authentication mechanism of the keycloak-services component, which provides ident…
    CVE-2026-114438 (CVSS 4.2) — A flaw was found in the Update User Locale required action of the Keycloak identity and access management solu…
    CVE-2026-109082 (CVSS 6.8) — A flaw was found in the Client-Initiated Backchannel Authentication CIBA implementation within the keycloak-se…
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    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-2026-118947 — Redhat (Medium 4.3) | CVE-DB