CVE-2026-1486
Keycloak fails to verify if an Identity Provider (IdP) is enabled before issuing tokens
8.8
HIGH
CVSS 3.1
EPSS 0.45%
描述
A flaw was found in Keycloak. A vulnerability exists in the jwt-authorization-grant flow where the server fails to verify if an Identity Provider (IdP) is enabled before issuing tokens. The issuer lookup mechanism (lookupIdentityProviderFromIssuer) retrieves the IdP configuration but does not filter for isEnabled=false. If an administrator disables an IdP (e.g., due to a compromise or offboarding), an entity possessing that IdP's signing key can still generate valid JWT assertions that Keycloak accepts, resulting in the issuance of valid access tokens.
如何修補 CVE-2026-1486
要修補 CVE-2026-1486,請將受影響套件升級到下列已修補版本。
- —升級至 26.5.3 或更新版本
CVE-2026-1486 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(1)
- >= 26.5.0, < 26.5.3
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |