Vaultwarden v1.35.2: 2FA setup failing for old users, but working for new users. #150

New Issue

MrUnknownDE · 2026-04-05T20:32:45+02:00

MrUnknownDE commented

2026-04-05 20:32:45 +02:00

Originally created by @GN998 on 1/17/2026

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: v1.35.2
Web-vault version: v2025.12.1+build.3
OS/Arch: linux/x86_64
Running within a container: true (Base: Alpine)
Database type: PostgreSQL
Database version: PostgreSQL 16.11 on x86_64-pc-linux-musl, compiled by gcc (Alpine 14.2.0) 14.2.0, 64-bit
Uses config.json: false
Uses a reverse proxy: true
IP Header check: true (x-forwarded-for)
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": false,
  "_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": "***",
  "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_idle_timeout": 600,
  "database_max_conns": 10,
  "database_min_conns": 2,
  "database_timeout": 30,
  "database_url": "**********://********************************************************************",
  "db_connection_retries": 15,
  "disable_2fa_remember": false,
  "disable_admin_token": false,
  "disable_icon_download": false,
  "dns_prefer_ipv6": 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": true,
  "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": "Vaultwarden",
  "invitations_allowed": true,
  "ip_header": "x-forwarded-for",
  "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": false,
  "org_groups_enabled": false,
  "password_hints_allowed": true,
  "password_iterations": 600000,
  "purge_incomplete_sso_auth": "0 20 0 * * *",
  "push_enabled": true,
  "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": false,
  "signups_allowed": false,
  "signups_domains_whitelist": "",
  "signups_verify": false,
  "signups_verify_resend_limit": 3,
  "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": "***********",
  "smtp_host": null,
  "smtp_password": null,
  "smtp_port": 587,
  "smtp_security": "starttls",
  "smtp_ssl": null,
  "smtp_timeout": 15,
  "smtp_username": null,
  "sso_allow_unknown_email_verification": false,
  "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": false,
  "sso_master_password_policy": null,
  "sso_only": false,
  "sso_pkce": true,
  "sso_scopes": "email profile",
  "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": 10240,
  "user_send_limit": null,
  "web_vault_enabled": true,
  "web_vault_folder": "web-vault/",
  "yubico_client_id": "112958",
  "yubico_secret_key": "***",
  "yubico_server": null
}

Vaultwarden Build Version

vaultwarden/server:1.35.2-alpine

Deployment method

Official Container Image

Custom deployment method

No response

Reverse Proxy

openresty:1.21.4.3-3-3-focal

Host/Server Operating System

Linux

Operating System Version

windows 11

Clients

Web Vault

Client Version

edge Vaultwarden Web 2025.12.1

Steps To Reproduce

Use a Vaultwarden instance (PostgreSQL 16.11 backend) that was running version 1.34.3 with existing users created before 2025/12/29.
Progressively update the instance: 1.35.0 -> 1.35.1 -> 1.35.2.
Log in with an existing user account created during the 1.34.3 period.
Navigate to 'Settings' -> 'Two-step Verification' -> 'WebAuthn'.
Attempt to add a new security key.
Observe the web UI displaying the error: "An error has occurred"
Note: Brand new users created directly on v1.35.2 can add WebAuthn/2FA without any issues.

Expected Result

Existing users should be able to manage and add 2FA/WebAuthn methods regardless of when their account was created or which version they originated from.

Actual Result

Timeline: The feature was working perfectly before 2025/12/29 on version 1.34.3.

Observation: The issue appeared after the sequential updates to the 1.35.x branch. It seems like a regression or a database compatibility issue affecting legacy user data.

Error Message: The web UI simply shows "An error has occurred" when clicking the setup button.

Logs

[2026-01-17 18:44:52.730][request][INFO] POST /api/two-factor/get-webauthn-challenge
[2026-01-17 18:44:52.897][error][ERROR] Webauthn.
[CAUSE] InvalidUsername
[2026-01-17 18:44:52.897][response][INFO] (generate_webauthn_challenge) POST /api/two-factor/get-webauthn-challenge => 400 Bad Request

Screenshots or Videos

Additional Context

I have attached a screenshot of the F12 Developer Tools console logs showing the error.

*Originally created by @GN998 on 1/17/2026* ### Prerequisites - [x] I have searched the existing **Closed _AND_ Open** [Issues](https://github.com/dani-garcia/vaultwarden/issues?q=is%3Aissue%20) **_AND_** [Discussions](https://github.com/dani-garcia/vaultwarden/discussions?discussions_q=) - [x] I have searched and read the [documentation](https://github.com/dani-garcia/vaultwarden/wiki/) ### Vaultwarden Support String ### Your environment (Generated via diagnostics page) * Vaultwarden version: v1.35.2 * Web-vault version: v2025.12.1+build.3 * OS/Arch: linux/x86_64 * Running within a container: true (Base: Alpine) * Database type: PostgreSQL * Database version: PostgreSQL 16.11 on x86_64-pc-linux-musl, compiled by gcc (Alpine 14.2.0) 14.2.0, 64-bit * Uses config.json: false * Uses a reverse proxy: true * IP Header check: true (x-forwarded-for) * 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) <details><summary>Show Config & Details</summary> **Config:** ```json { "_duo_akey": null, "_enable_duo": true, "_enable_email_2fa": false, "_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": "***", "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_idle_timeout": 600, "database_max_conns": 10, "database_min_conns": 2, "database_timeout": 30, "database_url": "**********://********************************************************************", "db_connection_retries": 15, "disable_2fa_remember": false, "disable_admin_token": false, "disable_icon_download": false, "dns_prefer_ipv6": 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": true, "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": "Vaultwarden", "invitations_allowed": true, "ip_header": "x-forwarded-for", "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": false, "org_groups_enabled": false, "password_hints_allowed": true, "password_iterations": 600000, "purge_incomplete_sso_auth": "0 20 0 * * *", "push_enabled": true, "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": false, "signups_allowed": false, "signups_domains_whitelist": "", "signups_verify": false, "signups_verify_resend_limit": 3, "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": "***********", "smtp_host": null, "smtp_password": null, "smtp_port": 587, "smtp_security": "starttls", "smtp_ssl": null, "smtp_timeout": 15, "smtp_username": null, "sso_allow_unknown_email_verification": false, "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": false, "sso_master_password_policy": null, "sso_only": false, "sso_pkce": true, "sso_scopes": "email profile", "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": 10240, "user_send_limit": null, "web_vault_enabled": true, "web_vault_folder": "web-vault/", "yubico_client_id": "112958", "yubico_secret_key": "***", "yubico_server": null } ``` </details> ### Vaultwarden Build Version vaultwarden/server:1.35.2-alpine ### Deployment method Official Container Image ### Custom deployment method _No response_ ### Reverse Proxy openresty:1.21.4.3-3-3-focal ### Host/Server Operating System Linux ### Operating System Version windows 11 ### Clients Web Vault ### Client Version edge Vaultwarden Web 2025.12.1 ### Steps To Reproduce 1. Use a Vaultwarden instance (PostgreSQL 16.11 backend) that was running version 1.34.3 with existing users created before 2025/12/29. 2. Progressively update the instance: 1.35.0 -> 1.35.1 -> 1.35.2. 3. Log in with an existing user account created during the 1.34.3 period. 4. Navigate to 'Settings' -> 'Two-step Verification' -> 'WebAuthn'. 5. Attempt to add a new security key. 6. Observe the web UI displaying the error: "An error has occurred" 7. Note: Brand new users created directly on v1.35.2 can add WebAuthn/2FA without any issues. ### Expected Result Existing users should be able to manage and add 2FA/WebAuthn methods regardless of when their account was created or which version they originated from. ### Actual Result Timeline: The feature was working perfectly before 2025/12/29 on version 1.34.3. Observation: The issue appeared after the sequential updates to the 1.35.x branch. It seems like a regression or a database compatibility issue affecting legacy user data. Error Message: The web UI simply shows "An error has occurred" when clicking the setup button. ### Logs ```text [2026-01-17 18:44:52.730][request][INFO] POST /api/two-factor/get-webauthn-challenge [2026-01-17 18:44:52.897][error][ERROR] Webauthn. [CAUSE] InvalidUsername [2026-01-17 18:44:52.897][response][INFO] (generate_webauthn_challenge) POST /api/two-factor/get-webauthn-challenge => 400 Bad Request ``` ### Screenshots or Videos <img width="1778" height="297" alt="Image" src="https://github.com/user-attachments/assets/241caac2-0659-4a4a-9209-cf4ae0f0981a" /> ### Additional Context <img width="1021" height="272" alt="Image" src="https://github.com/user-attachments/assets/6c719490-22d8-48e4-a11e-20d85b913557" /> I have attached a screenshot of the F12 Developer Tools console logs showing the error.

MrUnknownDE closed this issue

2026-04-05 20:32:45 +02:00

MrUnknownDE added the bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug labels 2026-04-05 20:32:51 +02:00

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Reference: github/vaultwarden#150