CVE-2026-2603
Keycloak: Unauthorized authentication via disabled SAML Identity Provider
8.1
HIGH
CVSS 3.1
EPSS 0.41%
描述
A flaw was found in Keycloak. A remote attacker could bypass security controls by sending a valid SAML response from an external Identity Provider (IdP) to the Keycloak SAML endpoint for IdP-initiated broker logins. This allows the attacker to complete broker logins even when the SAML Identity Provider is disabled, leading to unauthorized authentication.
如何修補 CVE-2026-2603
要修補 CVE-2026-2603,請將受影響套件升級到下列已修補版本。
- —升級至 26.5.5 或更新版本
- —升級至 26.5.5 或更新版本
CVE-2026-2603 正在被利用嗎?
低 — EPSS 為 0.4%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 26.5.5
- from 0, < 26.5.5
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |