CVE-2026-9705 | A flaw was found in Keycloak's client registration service. … | CVSS 6.5 MEDIUM

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.

Metadata

CVE ID: CVE-2026-9705
State: PUBLISHED
Assigner: redhat
Reserved: 2026-05-27 12:48 UTC
Published: 2026-06-25 16:17 UTC
Last updated: 2026-06-25 16:17 UTC
Primary CWE: CWE-613
Insufficient Session Expiration
Vendor / Product: Red Hat / Red Hat Build of Keycloak
Sources: cve.org · NVD

Severity & Metrics

6.5 MEDIUM CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected products (1)

Vendor	Product	Platform	Versions
Red Hat	Red Hat Build of Keycloak	—	—

Weakness (CWE)

CWE	Source	Description
CWE-613	cna	Insufficient Session Expiration

CVSS scores (1)

Score	Severity	Version	Source	Vector
6.5	MEDIUM	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

References (2)