CVE-2026-35597

Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the TOTP failed-attempt lockout mechanism is non-functional due to a database transaction handling bug. When a TOTP validation fails, the login handler in pkg/routes/api/v1/login.go calls HandleFailedTOTPAuth and then...

CVE-2026-35597

Vikunja prior to 2.3.0 is vulnerable to TOTP brute-forcing because the login failure path writes the account lock status (StatusAccountLocked) on the same DB session that is rolled back after a failed TOTP check. The in-memory counter in HandleFailedTOTPAuth tracks failures, and once it reaches 1...