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CVE PROGRAM SOURCE RECORD9.9 Critical

CVE-2025-66489

Cal.com Authentication Bypass via bad TOTP + password checks

Description

Cal.com is open-source scheduling software. Prior to 5.9.8, A flaw in the login credentials provider allows an attacker to bypass password verification when a TOTP code is provided, potentially gaining unauthorized access to user accounts. This issue exists due to problematic conditional logic in the authentication flow. This vulnerability is fixed in 5.9.8.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

calcom cal.com

  • < 5.9.8affected

References