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    CVE-2023-6484

    A log injection flaw was found in Keycloak. A text string may be injected through the authentication form when using the WebAuthn authentication mode. This issue may have a minor impact to the logs integrity.

    Published:Dec 4, 2023
    Last Modified:Jun 26, 2026
    EPS:Apr 25, 2024
    EPSS Score:0.01008
    CVSS Score:5.3

    Affected Products

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

    Exploits

    No exploit reference

    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-2024:0798
    https://access.redhat.com/errata/RHSA-2024:0799
    https://access.redhat.com/errata/RHSA-2024:0800
    https://access.redhat.com/errata/RHSA-2024:0801
    https://access.redhat.com/errata/RHSA-2024:0804
    https://access.redhat.com/errata/RHSA-2024:1860
    https://access.redhat.com/errata/RHSA-2024:1861
    https://access.redhat.com/errata/RHSA-2024:1862
    https://access.redhat.com/errata/RHSA-2024:1864
    https://access.redhat.com/errata/RHSA-2024:1865
    https://access.redhat.com/errata/RHSA-2024:1866
    https://access.redhat.com/errata/RHSA-2024:1867
    https://access.redhat.com/errata/RHSA-2024:1868
    https://access.redhat.com/security/cve/CVE-2023-6484
    https://bugzilla.redhat.com/show_bug.cgi?id=2248423
    https://github.com/advisories/GHSA-j628-q885-8gr5
    https://access.redhat.com/errata/RHSA-2024:0798
    https://access.redhat.com/errata/RHSA-2024:0799
    https://access.redhat.com/errata/RHSA-2024:0800
    https://access.redhat.com/errata/RHSA-2024:0801
    https://access.redhat.com/errata/RHSA-2024:0804
    https://access.redhat.com/errata/RHSA-2024:1860
    https://access.redhat.com/errata/RHSA-2024:1861
    https://access.redhat.com/errata/RHSA-2024:1862
    https://access.redhat.com/errata/RHSA-2024:1864
    https://access.redhat.com/errata/RHSA-2024:1865
    https://access.redhat.com/errata/RHSA-2024:1866
    https://access.redhat.com/errata/RHSA-2024:1867
    https://access.redhat.com/errata/RHSA-2024:1868
    https://access.redhat.com/security/cve/CVE-2023-6484
    https://bugzilla.redhat.com/show_bug.cgi?id=2248423

    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