CVE-2026-9705

Keycloak: keycloak: attacker can re-enable and take over disabled clients via registration access token

State
Published
Severity
6.5 Medium
Published
Jun 25, 2026
Updated
Jun 29, 2026
Reserved
May 27, 2026

Read the record on cve.org

Description

A flaw was found in Keycloak's client registration service. A remote attacker, possessing a previously issued Registration Access Token (RAT), could exploit this vulnerability to re-enable a client that an administrator had explicitly disabled. This bypasses security controls, allowing the attacker to reset the client's secret and potentially regain privileged API access. The primary impact includes unauthorized information disclosure and potential integrity compromise.

Scores

CVSSScoreVectorSource
3.16.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Nredhat

Weaknesses

  • CWE-613 Insufficient Session Expiration

Affected Products

ProductVersions
Red Hat build of Keycloak 26.4Red Hat
  • 26.4.13-1 and laterNot affected
Red Hat build of Keycloak 26.4Red Hat
  • 26.4-19 and laterNot affected
Red Hat build of Keycloak 26.4Red Hat
  • 26.4-19 and laterNot affected
Red Hat build of Keycloak 26.4.13Red Hat
    Red Hat build of Keycloak 26.6Red Hat
    • 26.6.4-2 and laterNot affected
    Red Hat build of Keycloak 26.6Red Hat
    • 26.6-8 and laterNot affected
    Red Hat build of Keycloak 26.6Red Hat
    • 26.6-8 and laterNot affected
    Red Hat build of Keycloak 26.6.4Red Hat

      References

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