CVE-2026-1486 — Org.keycloak.protocol.oidc.grants: disabled identity providers are still accepted for jwt authorization grant
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…
Published: 2026-02-09 · CVSS: 8.8 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7