User can't be confirmed "Cannot read properties of null (reading 'buffer')" #1762

New Issue

MrUnknownDE · 2026-04-06T02:21:09+02:00

MrUnknownDE commented

2026-04-06 02:21:09 +02:00

Originally created by @tperrindell on 2/1/2023

Subject of the issue

A specific user cannot be validated / confirmed. Other users are working fine, and I don't know what singles out this user.

Deployment environment

Your environment (Generated via diagnostics page)

Vaultwarden version: v1.27.0
Web-vault version: v2022.12.0
Running within Docker: true (Base: Debian)
Environment settings overridden: false
Uses a reverse proxy: true
IP Header check: true (X-Real-IP)
Internet access: false
Internet access via a proxy: false
DNS Check: true
Time Check: true
Domain Configuration Check: false
HTTPS Check: false
Database type: SQLite
Database version: 3.39.2
Clients used:
Reverse proxy and version:
Other relevant information:

Config (Generated via diagnostics page)

Show Running Config

Environment settings which are overridden:

{
  "_duo_akey": null,
  "_enable_duo": false,
  "_enable_email_2fa": false,
  "_enable_smtp": true,
  "_enable_yubico": true,
  "_icon_service_csp": "",
  "_icon_service_url": "",
  "_ip_header_enabled": true,
  "_smtp_img_src": "cid:",
  "admin_ratelimit_max_burst": 3,
  "admin_ratelimit_seconds": 300,
  "admin_token": "***",
  "allowed_iframe_ancestors": "",
  "attachments_folder": "data/attachments",
  "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": false,
  "disable_icon_download": false,
  "domain": "****://**************************",
  "domain_origin": "****://**************************",
  "domain_path": "",
  "domain_set": true,
  "duo_host": null,
  "duo_ikey": null,
  "duo_skey": null,
  "email_attempts_limit": 3,
  "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,
  "event_cleanup_schedule": "0 10 0 * * *",
  "events_days_retain": null,
  "extended_logging": true,
  "helo_name": null,
  "hibp_api_key": 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,
  "invitation_expiration_hours": 120,
  "invitation_org_name": "Vaultwarden",
  "invitations_allowed": true,
  "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": false,
  "org_groups_enabled": false,
  "password_hints_allowed": true,
  "password_iterations": 100000,
  "reload_templates": false,
  "require_device_email": false,
  "rsa_key_filename": "data/rsa_key",
  "send_purge_schedule": "0 5 * * * *",
  "sends_allowed": true,
  "sends_folder": "data/sends",
  "show_password_hint": true,
  "signups_allowed": true,
  "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": false,
  "smtp_from": "*********************************",
  "smtp_from_name": "Vaultwarden",
  "smtp_host": "**************************",
  "smtp_password": null,
  "smtp_port": 25,
  "smtp_security": "off",
  "smtp_ssl": false,
  "smtp_timeout": 15,
  "smtp_username": null,
  "templates_folder": "data/templates",
  "tmp_folder": "data/tmp",
  "trash_auto_delete_days": null,
  "trash_purge_schedule": "0 5 0 * * *",
  "use_syslog": false,
  "user_attachment_limit": null,
  "web_vault_enabled": true,
  "web_vault_folder": "web-vault/",
  "websocket_address": "0.0.0.0",
  "websocket_enabled": false,
  "websocket_port": 3012,
  "yubico_client_id": null,
  "yubico_secret_key": null,
  "yubico_server": null
}

Reverse proxy and version: traefik 2.6.7
MySQL/MariaDB or PostgreSQL version: docker version latest
Other relevant details:

Steps to reproduce

Unfortunately, I have no idea what causes this. I have multiple users with the same mail format that had no problem in getting confirmed.

Expected behaviour

Clicking on "Confirm access" after invitation accepted allows user to use the environment.

Actual behaviour

Troubleshooting data

I tried disabling / re-enabling user in the admin page, no success.
No errors in docker-compose logs.

*Originally created by @tperrindell on 2/1/2023* ### Subject of the issue A specific user cannot be validated / confirmed. Other users are working fine, and I don't know what singles out this user. ### Deployment environment ### Your environment (Generated via diagnostics page) * Vaultwarden version: v1.27.0 * Web-vault version: v2022.12.0 * Running within Docker: true (Base: Debian) * Environment settings overridden: false * Uses a reverse proxy: true * IP Header check: true (X-Real-IP) * Internet access: false * Internet access via a proxy: false * DNS Check: true * Time Check: true * Domain Configuration Check: false * HTTPS Check: false * Database type: SQLite * Database version: 3.39.2 * Clients used: * Reverse proxy and version: * Other relevant information: ### Config (Generated via diagnostics page) <details><summary>Show Running Config</summary> **Environment settings which are overridden:** ```json { "_duo_akey": null, "_enable_duo": false, "_enable_email_2fa": false, "_enable_smtp": true, "_enable_yubico": true, "_icon_service_csp": "", "_icon_service_url": "", "_ip_header_enabled": true, "_smtp_img_src": "cid:", "admin_ratelimit_max_burst": 3, "admin_ratelimit_seconds": 300, "admin_token": "***", "allowed_iframe_ancestors": "", "attachments_folder": "data/attachments", "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": false, "disable_icon_download": false, "domain": "****://**************************", "domain_origin": "****://**************************", "domain_path": "", "domain_set": true, "duo_host": null, "duo_ikey": null, "duo_skey": null, "email_attempts_limit": 3, "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, "event_cleanup_schedule": "0 10 0 * * *", "events_days_retain": null, "extended_logging": true, "helo_name": null, "hibp_api_key": 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, "invitation_expiration_hours": 120, "invitation_org_name": "Vaultwarden", "invitations_allowed": true, "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": false, "org_groups_enabled": false, "password_hints_allowed": true, "password_iterations": 100000, "reload_templates": false, "require_device_email": false, "rsa_key_filename": "data/rsa_key", "send_purge_schedule": "0 5 * * * *", "sends_allowed": true, "sends_folder": "data/sends", "show_password_hint": true, "signups_allowed": true, "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": false, "smtp_from": "*********************************", "smtp_from_name": "Vaultwarden", "smtp_host": "**************************", "smtp_password": null, "smtp_port": 25, "smtp_security": "off", "smtp_ssl": false, "smtp_timeout": 15, "smtp_username": null, "templates_folder": "data/templates", "tmp_folder": "data/tmp", "trash_auto_delete_days": null, "trash_purge_schedule": "0 5 0 * * *", "use_syslog": false, "user_attachment_limit": null, "web_vault_enabled": true, "web_vault_folder": "web-vault/", "websocket_address": "0.0.0.0", "websocket_enabled": false, "websocket_port": 3012, "yubico_client_id": null, "yubico_secret_key": null, "yubico_server": null } ``` </details> * Reverse proxy and version: traefik 2.6.7 * MySQL/MariaDB or PostgreSQL version: docker version latest * Other relevant details: ### Steps to reproduce Unfortunately, I have no idea what causes this. I have multiple users with the same mail format that had no problem in getting confirmed. ### Expected behaviour Clicking on "Confirm access" after invitation accepted allows user to use the environment. ### Actual behaviour ![wBmgHybUma](https://user-images.githubusercontent.com/103429802/216029799-c089de3f-1562-40b2-9c0c-9d99899f169d.png) ### Troubleshooting data I tried disabling / re-enabling user in the admin page, no success. No errors in docker-compose logs.

MrUnknownDE closed this issue

2026-04-06 02:21:09 +02:00

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Reference: github/vaultwarden#1762