Improper Authentication, Missing Authentication for Critical Function, Not Failing Securely ('Failing Open') vulnerability in Apache Camel Keycloak Component. The KeycloakSecurityPolicy of camel-keycloak guards a route by running KeycloakSecurityProcessor.beforeProcess(), which performs three checks in sequence: it rejects a request that carries no access token, then - only if requiredRoles is non-empty - validates the roles, and - only if requiredPermissions is non-empty - validates the permissions. The actual cryptographic verification of the bearer access token (signature, issuer and expiry for a local JWT, or active-state and issuer for token introspection) is performed exclusively inside those role and permission checks. KeycloakSecurityPolicy defaults requiredRoles and requiredPermissions to empty - which is the documented 'Basic Setup' - so on a route configured that way the role and permission checks are skipped and the access token is therefore never verified. The token-presence check still rejects a missing token, but an invalid token is accepted: any non-null value in the Authorization: Bearer header - including an arbitrary string or a forged, unsigned JWT - passes the policy and the request reaches the protected route, with no signature, issuer or expiry check and no request to Keycloak. The token is read from the inbound request header because allowTokenFromHeader defaults to true. Because the normal reason to place a route behind this policy is that the route performs server-side work, the bypass results in unauthenticated access to that work; where the protected route forwards to a code-execution-capable producer, it can result in unauthenticated remote code execution. This defect is independent of CVE-2026-23552: that issue concerned the issuer claim and was fixed by adding a check inside the verification routine, but here the verification routine is not reached at all in the default configuration, so the defect remains. This issue affects Apache Camel: from 4.15.0 before 4.18.3, from 4.19.0 before 4.21.0. Users are recommended to upgrade to version 4.21.0, which fixes the issue. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.3. For deployments that cannot upgrade immediately, configure a non-empty requiredRoles or requiredPermissions on every KeycloakSecurityPolicy so that the token-verification path is exercised, set allowTokenFromHeader to false where the token is not expected from the request header, or perform token verification at the framework layer ahead of the policy.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - Improper Authentication, Missing Authentication for Critical Function, Not Failing Securely ('Failing
    Open') vulnerability in Apache Camel Keycloak Component. The KeycloakSecurityPolicy of camel-keycloak
    guards a route by running KeycloakSecurityProcessor.beforeProcess(), which performs three checks in
    sequence: it rejects a request that carries no access token, then - only if requiredRoles is non-empty -
    validates the roles, and - only if requiredPermissions is non-empty - validates the permissions. The
    actual cryptographic verification of the bearer access token (signature, issuer and expiry for a local
    JWT, or active-state and issuer for token introspection) is performed exclusively inside those role and
    permission checks. KeycloakSecurityPolicy defaults requiredRoles and requiredPermissions to empty - which
    is the documented 'Basic Setup' - so on a route configured that way the role and permission checks are
    skipped and the access token is therefore never verified. The token-presence check still rejects a missing
    token, but an invalid token is accepted: any non-null value in the Authorization: Bearer header -
    including an arbitrary string or a forged, unsigned JWT - passes the policy and the request reaches the
    protected route, with no signature, issuer or expiry check and no request to Keycloak. The token is read
    from the inbound request header because allowTokenFromHeader defaults to true. Because the normal reason
    to place a route behind this policy is that the route performs server-side work, the bypass results in
    unauthenticated access to that work; where the protected route forwards to a code-execution-capable
    producer, it can result in unauthenticated remote code execution. This defect is independent of
    CVE-2026-23552: that issue concerned the issuer claim and was fixed by adding a check inside the
    verification routine, but here the verification routine is not reached at all in the default
    configuration, so the defect remains. This issue affects Apache Camel: from 4.15.0 before 4.18.3, from
    4.19.0 before 4.21.0. Users are recommended to upgrade to version 4.21.0, which fixes the issue. If users
    are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.3. For deployments that
    cannot upgrade immediately, configure a non-empty requiredRoles or requiredPermissions on every
    KeycloakSecurityPolicy so that the token-verification path is exercised, set allowTokenFromHeader to false
    where the token is not expected from the request header, or perform token verification at the framework
    layer ahead of the policy. (CVE-2026-53913)

ID	Name	Product	Family	Severity
445318	SCA: security update for org.apache.camel:camel-keycloak (GHSA-qvc3-6q9x-95pj)	Tenable Cloud Security	SCA Checks	critical
445318	SCA: security update for org.apache.camel:camel-keycloak (GHSA-qvc3-6q9x-95pj)	Tenable Self-Hosted Container Security	SCA Checks	critical

Detections

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CVE-2026-53913

critical

Tenable Plugins

critical

critical