CVE-2026-8830
Keycloak: Policy bypass during WebAuthn credential registration via client-side JavaScript manipulation
描述
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.
如何修補 CVE-2026-8830
要修補 CVE-2026-8830,請將受影響套件升級到下列已修補版本。
- —升級至 26.6.3 或更新版本
CVE-2026-8830 正在被利用嗎?
目前沒有被利用訊號。CVE-2026-8830 既不在 CISA KEV 也沒有最新的 EPSS 分數。
受影響套件(1)
- from 0, < 26.6.3
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |