CVE-2026-1486
Org.keycloak.protocol.oidc.grants: disabled identity providers are still accepted for jwt authorization grant
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-358 |
| Vendor | red hat |
| Product | red hat build of keycloak 26.4 |
| Published | Feb 9, 2026 |
| Last Updated | Feb 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Red Hat / Red Hat build of Keycloak 26.4
All versions affected Red Hat / Red Hat build of Keycloak 26.4
All versions affected Red Hat / Red Hat build of Keycloak 26.4
All versions affected Red Hat / Red Hat build of Keycloak 26.4.9
All versions affected References
Credits
Red Hat would like to thank Joy Gilbert Dan and Reynaldo Immanuel for reporting this issue.