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.
Metrics
Affected Vendors & Products
References
History
Tue, 10 Feb 2026 15:45:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Redhat build Of Keycloak
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| Vendors & Products |
Redhat build Of Keycloak
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Tue, 10 Feb 2026 01:45:00 +0000
| Type | Values Removed | Values Added |
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| CPEs | cpe:/a:redhat:build_keycloak:26.4::el9 | |
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Tue, 10 Feb 2026 00:15:00 +0000
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threat_severity
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threat_severity
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Mon, 09 Feb 2026 21:15:00 +0000
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ssvc
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Mon, 09 Feb 2026 19:30:00 +0000
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| Description | 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. | |
| Title | Org.keycloak.protocol.oidc.grants: disabled identity providers are still accepted for jwt authorization grant | |
| First Time appeared |
Redhat
Redhat build Keycloak |
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| Weaknesses | CWE-358 | |
| CPEs | cpe:/a:redhat:build_keycloak: | |
| Vendors & Products |
Redhat
Redhat build Keycloak |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published: 2026-02-09T18:36:10.268Z
Updated: 2026-02-10T01:00:47.265Z
Reserved: 2026-01-27T13:35:02.603Z
Link: CVE-2026-1486
Updated: 2026-02-09T20:53:36.269Z
Status : Awaiting Analysis
Published: 2026-02-09T20:15:55.717
Modified: 2026-02-10T02:15:52.143
Link: CVE-2026-1486
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