CVE-2026-7571
Keycloak: Access token disclosure and implicit flow bypass via forged client data
7.1
HIGH
CVSS 3.1
描述
A flaw was found in Keycloak. A low-privilege user, with knowledge of user credentials and client ID, can bypass a security control intended to disable the implicit flow in OpenID Connect (OIDC) clients. By manipulating client data during a session restart, an attacker can obtain an access token that should not be available. This vulnerability can also lead to the exposure of these access tokens in server logs, proxy logs, and HTTP Referrer headers, resulting in sensitive information disclosure.
如何修補 CVE-2026-7571
要修補 CVE-2026-7571,請將受影響套件升級到下列已修補版本。
- —升級至 26.6.2 或更新版本
CVE-2026-7571 正在被利用嗎?
目前沒有被利用訊號。CVE-2026-7571 既不在 CISA KEV 也沒有最新的 EPSS 分數。
受影響套件(1)
- from 0, < 26.6.2
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N |