SSO with OIDC asks for Email, then Username, which it should already know

[Erudition]

Prerequisites

• I have searched the existing Closed AND Open Issues AND Discussions
• I have searched and read the documentation

Vaultwarden Support String

Your environment (Generated via diagnostics page)

• Vaultwarden version: v1.34.3-77008a91
• Web-vault version: v2025.7.2
• OS/Arch: linux/x86_64
• Running within a container: true (Base: Debian)
• Database type: SQLite
• Database version: 3.50.2
• Uses config.json: false
• Uses a reverse proxy: true
• IP Header check: true (X-Real-IP)
• Internet access: true
• Internet access via a proxy: false
• DNS Check: true
• Browser/Server Time Check: true
• Server/NTP Time Check: true
• Domain Configuration Check: true
• HTTPS Check: true
• Websocket Check: true
• HTTP Response Checks: true

Config & Details (Generated via diagnostics page)

Show Config & Details

Config:

{
  "_duo_akey": null,
  "_enable_duo": true,
  "_enable_email_2fa": true,
  "_enable_smtp": true,
  "_enable_yubico": true,
  "_icon_service_csp": "",
  "_icon_service_url": "",
  "_ip_header_enabled": true,
  "_max_note_size": 10000,
  "_smtp_img_src": "***:",
  "admin_ratelimit_max_burst": 3,
  "admin_ratelimit_seconds": 300,
  "admin_session_lifetime": 20,
  "admin_token": null,
  "allowed_connect_src": "",
  "allowed_iframe_ancestors": "**************",
  "attachments_folder": "data/attachments",
  "auth_request_purge_schedule": "30 * * * * *",
  "authenticator_disable_time_drift": false,
  "data_folder": "data",
  "database_conn_init": "",
  "database_max_conns": 10,
  "database_timeout": 30,
  "database_url": "***************",
  "db_connection_retries": 15,
  "disable_2fa_remember": false,
  "disable_admin_token": true,
  "disable_icon_download": false,
  "domain": "*****://********************",
  "domain_origin": "*****://********************",
  "domain_path": "",
  "domain_set": true,
  "duo_context_purge_schedule": "30 * * * * *",
  "duo_host": null,
  "duo_ikey": null,
  "duo_skey": null,
  "duo_use_iframe": false,
  "email_2fa_auto_fallback": false,
  "email_2fa_enforce_on_verified_invite": false,
  "email_attempts_limit": 3,
  "email_change_allowed": false,
  "email_expiration_time": 600,
  "email_token_size": 6,
  "emergency_access_allowed": true,
  "emergency_notification_reminder_schedule": "0 3 * * * *",
  "emergency_request_timeout_schedule": "0 7 * * * *",
  "enable_db_wal": true,
  "enable_websocket": true,
  "enforce_single_org_with_reset_pw_policy": false,
  "event_cleanup_schedule": "0 10 0 * * *",
  "events_days_retain": null,
  "experimental_client_feature_flags": "",
  "extended_logging": true,
  "helo_name": null,
  "hibp_api_key": null,
  "http_request_block_non_global_ips": true,
  "http_request_block_regex": null,
  "icon_blacklist_non_global_ips": true,
  "icon_blacklist_regex": null,
  "icon_cache_folder": "data/icon_cache",
  "icon_cache_negttl": 259200,
  "icon_cache_ttl": 2592000,
  "icon_download_timeout": 10,
  "icon_redirect_code": 302,
  "icon_service": "internal",
  "incomplete_2fa_schedule": "30 * * * * *",
  "incomplete_2fa_time_limit": 3,
  "increase_note_size_limit": false,
  "invitation_expiration_hours": 120,
  "invitation_org_name": "10BitWorks",
  "invitations_allowed": false,
  "ip_header": "X-Real-IP",
  "job_poll_interval_ms": 30000,
  "log_file": null,
  "log_level": "info",
  "log_timestamp_format": "%Y-%m-%d %H:%M:%S.%3f",
  "login_ratelimit_max_burst": 10,
  "login_ratelimit_seconds": 60,
  "org_attachment_limit": null,
  "org_creation_users": "",
  "org_events_enabled": true,
  "org_groups_enabled": true,
  "password_hints_allowed": true,
  "password_iterations": 600000,
  "purge_incomplete_sso_nonce": "0 20 0 * * *",
  "push_enabled": false,
  "push_identity_uri": "https://identity.bitwarden.com",
  "push_installation_id": "***",
  "push_installation_key": "***",
  "push_relay_uri": "https://push.bitwarden.com",
  "reload_templates": false,
  "require_device_email": false,
  "rsa_key_filename": "data/rsa_key",
  "send_purge_schedule": "0 5 * * * *",
  "sendmail_command": null,
  "sends_allowed": true,
  "sends_folder": "data/sends",
  "show_password_hint": true,
  "signups_allowed": false,
  "signups_domains_whitelist": "**************",
  "signups_verify": false,
  "signups_verify_resend_limit": 6,
  "signups_verify_resend_time": 3600,
  "smtp_accept_invalid_certs": false,
  "smtp_accept_invalid_hostnames": false,
  "smtp_auth_mechanism": null,
  "smtp_debug": false,
  "smtp_embed_images": true,
  "smtp_explicit_tls": null,
  "smtp_from": "********************",
  "smtp_from_name": "10Bit Vault",
  "smtp_host": "**************",
  "smtp_password": "***",
  "smtp_port": 587,
  "smtp_security": "starttls",
  "smtp_ssl": null,
  "smtp_timeout": 15,
  "smtp_username": "**********************",
  "sso_allow_unknown_email_verification": true,
  "sso_audience_trusted": null,
  "sso_auth_only_not_session": false,
  "sso_authority": "*****://**********************************************",
  "sso_authorize_extra_params": "",
  "sso_callback_path": "*****://*************************************************",
  "sso_client_cache_expiration": 0,
  "sso_client_id": "****************************************",
  "sso_client_secret": "***",
  "sso_debug_tokens": false,
  "sso_enabled": true,
  "sso_master_password_policy": null,
  "sso_only": true,
  "sso_pkce": true,
  "sso_scopes": "email profile offline_access",
  "sso_signups_match_email": true,
  "templates_folder": "data/templates",
  "tmp_folder": "data/tmp",
  "trash_auto_delete_days": null,
  "trash_purge_schedule": "0 5 0 * * *",
  "use_sendmail": false,
  "use_syslog": false,
  "user_attachment_limit": null,
  "user_send_limit": null,
  "web_vault_enabled": true,
  "web_vault_folder": "web-vault/",
  "yubico_client_id": null,
  "yubico_secret_key": null,
  "yubico_server": null
}

Vaultwarden Build Version

v1.34.3-77008a91

Deployment method

Official Container Image

Custom deployment method

No response

Reverse Proxy

nginx v2.12.3

Host/Server Operating System

Linux

Operating System Version

Docker/Portainer on Ubuntu Container in Proxmox

Clients

Web Vault

Client Version

No response

Steps To Reproduce

1. Set up Vaultwarden SSO with OIDC via environment variables (in my case, with Authentik)
2. Log in to SSO provider (e.g. Authentik)
3. Go from there to Vaultwarden Web Vault

Expected Result

I expected to be already logged in, and just need to unlock my vault if needed. The login already happened via SSO.

At worst, I expected to have to hit a redundant "Log in with SSO" button that starts the OIDC process, redirects to Authentik, and bounces back to Vaultwarden letting it know who's already logged in.

Actual Result

I am asked to enter my email, even though that's provided by SSO, and then I'm asked to enter my username (unclearly referred to only as "SSO Identifier") even though that's implied by my email and also already known due to the SSO login... and then I'm asked to unlock my vault. Two extra steps

Logs

Screenshots or Videos

No response

Additional Context

Is there a URL I can launch instead of the base URL, to skip these steps and just use the email/username associated with the SSO user logged in?

[krparajuli]

Is the username the exact same string as email in this case? Or is the username substring of the email? Attach screenshots for clarity please?

[Gauss23]

What env variables are you setting?

Here is the Authentik manual for Vaultwarden, which maybe helps: https://integrations.goauthentik.io/security/vaultwarden/#vaultwarden-configuration

SSO_AUTHORITY=https://authentik.company/application/o/<application_slug>/
SSO_CLIENT_ID=<client_id>
SSO_CLIENT_SECRET=<client_secret>
SSO_SCOPES="openid email profile offline_access"
SSO_ALLOW_UNKNOWN_EMAIL_VERIFICATION=false
SSO_CLIENT_CACHE_EXPIRATION=0
SSO_ONLY=false # Set to true to disable email+master password login and require SSO
SSO_SIGNUPS_MATCH_EMAIL=true # Match first SSO login to existing account by email

[wangshug]

I have the same question, login authentik after redirect I have to input my master password to unlock the Vaultwarden.

[ahlund]

I have the same question, login authentik after redirect I have to input my master password to unlock the Vaultwarden.

That is not the same question. Having to input the master password after SSO login is "intended behaviour". Check the WiKi (https://github.com/dani-garcia/vaultwarden/wiki/Enabling-SSO-support-using-OpenId-Connect)

[michaelbeaumont]

I am asked to enter my email, even though that's provided by SSO

Unfortunately Bitwarden requires an email to log you in. #6204 (comment)

then I'm asked to enter my username (unclearly referred to only as "SSO Identifier") even though that's implied by my email and also already known due to the SSO login

This seems to be something Authentik-specific. With Pocket ID for example I don't have to actually enter my SSO identifier. It's up to your SSO provider to handle logging you in.