CVE-2026-9705

MEDIUM

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

Title source: cna
STIX 2.1

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.

References (6)

Core 6
Core References
Issue Tracking, X_Refsource_Redhat issue-tracking x_refsource_redhat
RHBZ#2481878
https://bugzilla.redhat.com/show_bug.cgi?id=2481878
Vendor Advisory vendor-advisory x_refsource_redhat
RHSA-2026:30049
https://access.redhat.com/errata/RHSA-2026:30049
Vendor Advisory vendor-advisory x_refsource_redhat
RHSA-2026:30050
https://access.redhat.com/errata/RHSA-2026:30050
Vendor Advisory vendor-advisory x_refsource_redhat
RHSA-2026:30083
https://access.redhat.com/errata/RHSA-2026:30083
Vendor Advisory vendor-advisory x_refsource_redhat
RHSA-2026:30084
https://access.redhat.com/errata/RHSA-2026:30084
Vdb Entry, X_Refsource_Redhat vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2026-9705

Scores

CVSS v3 6.5
EPSS 0.0027
EPSS Percentile 18.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-613
Status published
Products (8)
Red Hat/Red Hat Build of Keycloak
Red Hat/Red Hat build of Keycloak 26.4 26.4-19
Red Hat/Red Hat build of Keycloak 26.4 26.4.13-1
Red Hat/Red Hat build of Keycloak 26.4.13
Red Hat/Red Hat build of Keycloak 26.6 26.6-8
Red Hat/Red Hat build of Keycloak 26.6 26.6.4-2
Red Hat/Red Hat build of Keycloak 26.6.4
redhat/build_of_keycloak 26.4 - 26.4.13
Published Jun 25, 2026
Tracked Since Jun 25, 2026