CVE-2026-71244 Paperless-ngx: Mail Account Test Connection Leaks Stored IMAP/OAuth Credentials to Attacker-Controlled Host

Paperless-ngx's MailAccountViewSet.test action, when called with an existing account's ID and a masked password field, reuses the stored password, accounttype, refreshtoken, and expiration from that existing account while allowing the caller to supply a different imapserver, imapport, and...