A flaw was found in Keycloak. An authenticated user can bypass configured WebAuthn policies during credential registration by manipulating client-side JavaScript. This occurs because the server-side processAction() fails to validate that the newly created credential's parameters, such as public key algorithms, match the realm's configured WebAuthn policies. This could lead to the creation of credentials that do not adhere to administrative security requirements, potentially weakening the overall security posture of the system by allowing non-compliant authentication methods.
References
| Link | Resource |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-8830 | Vendor Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2479565 | Issue Tracking Vendor Advisory |
Configurations
History
02 Jun 2026, 18:54
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://access.redhat.com/security/cve/CVE-2026-8830 - Vendor Advisory | |
| References | () https://bugzilla.redhat.com/show_bug.cgi?id=2479565 - Issue Tracking, Vendor Advisory | |
| First Time |
Redhat
Redhat build Of Keycloak |
|
| CPE | cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:-:*:*:* |
19 May 2026, 07:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-19 07:16
Updated : 2026-06-02 18:54
NVD link : CVE-2026-8830
Mitre link : CVE-2026-8830
CVE.ORG link : CVE-2026-8830
JSON object : View
Products Affected
redhat
- build_of_keycloak
CWE
CWE-603
Use of Client-Side Authentication