fix(oidc): skip UserInfo endpoint call for Entra ID compatibility#171
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Entra's discovered UserInfo endpoint (graph.microsoft.com/oidc/userinfo) returns HTTP 200 but omits preferred_username, causing Spring Security's DefaultOAuth2UserService to throw before the ID token claims are merged. All required claims (preferred_username, groups) are present in the Entra v2.0 ID token when the profile scope is requested. Skip the UserInfo call entirely via setRetrieveUserInfo(req -> false). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Replace the unconditional setRetrieveUserInfo(req -> false) with a per-registration config flag (auth.oidc.skip-user-info, default false). When true, all claims are read from the ID token and the UserInfo endpoint is never contacted. Required for Entra ID, whose discovered UserInfo endpoint (graph.microsoft.com/oidc/userinfo) returns HTTP 200 but omits preferred_username — a Microsoft design constraint present on all Entra tenants. Standard OIDC providers (Keycloak, Okta, Dex) are unaffected by default. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
graph.microsoft.com/oidc/userinfo) returns HTTP 200 but omitspreferred_username, causingDefaultOAuth2UserServiceto throw before ID token claims are mergedpreferred_username cannot be null500 error on OIDC callbackpreferred_username,groups) are present in the Entra v2.0 ID token with theprofilescope — skip the UserInfo call entirely viasetRetrieveUserInfo(req -> false)Test plan
private_key_jwtclient authpreferred_usernameandgroupsclaims are populated from ID tokengroupsclaim still works (ROLE_ADMIN granted via group membership)🤖 Generated with Claude Code