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CVE-2026-8922— Org.keycloak/keycloak-services: keycloak: org.keycloak.protocol.oidc: security flaw in org.keycloak/keycloak-services

CVSS 5.4 · Medium EPSS 0.01% · P1

Affected Version Matrix 1

VendorProductVersion RangeStatus
Red HatRed Hat Build of Keycloakanyaffected
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I. Basic Information for CVE-2026-8922

Vulnerability Information
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Vulnerability Title
Org.keycloak/keycloak-services: keycloak: org.keycloak.protocol.oidc: security flaw in org.keycloak/keycloak-services
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw was found in Keycloak. When both realm-level and client-level `notBefore` revocation policies are configured, Keycloak's OpenID Connect (OIDC) Introspection feature fails to properly honor the realm-level policy. This allows tokens that should have been revoked to remain active, potentially leading to unauthorized access or continued session validity. This could impact the security of systems utilizing Keycloak for identity and access management.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
认证算法的不正确实现
Source: NVD (National Vulnerability Database)
Vulnerability Title
Keycloak 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Keycloak是Keycloak开源的一种开源身份和访问管理解决方案。 Keycloak存在安全漏洞，该漏洞源于OIDC内省功能未正确应用领域级notBefore策略，可能导致已撤销令牌仍有效。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Red HatRed Hat Build of Keycloak-cpe:/a:redhat:build_keycloak:

II. Public POCs for CVE-2026-8922

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III. Intelligence Information for CVE-2026-8922

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Advisory · 2

Same Patch Batch · Red Hat · 2026-05-19 · 11 CVEs total

CVE-2026-75048.1 HIGHOrg.keycloak/keycloak-services: open redirect when using wildcard valid redirect uris in k
CVE-2026-75077.5 HIGHOrg.keycloak/keycloak-services: session fixation in oidc login flow that can lead to accou
CVE-2026-73077.5 HIGHKeycloak: keycloak: denial of service via specially crafted saml input
CVE-2026-75717.1 HIGHKeycloak: keycloak: access token disclosure and implicit flow bypass via forged client dat
CVE-2026-379826.8 MEDIUMKeycloak: org.keycloak.authentication: keycloak: unauthorized account takeover via webauth
CVE-2026-46306.8 MEDIUMKeycloak: keycloak: unauthorized resource access and data modification via insecure direct
CVE-2026-379796.5 MEDIUMKeycloak: keycloak: information disclosure via oidc token introspection endpoint audience
CVE-2026-379784.9 MEDIUMKeycloak: org.keycloak.services: keycloak: information disclosure via evaluate-scopes admi
CVE-2026-379814.3 MEDIUMKeycloak: org.keycloak.authorization: keycloak: information disclosure via broken access c
CVE-2026-88304.3 MEDIUMKeycloak: org.keycloak/keycloak-services: keycloak: policy bypass during webauthn credenti

IV. Related Vulnerabilities

Same product: Red Hat Build of Keycloak
Same vendor: Red Hat
Same weakness: CWE-303

V. Comments for CVE-2026-8922

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