CVE-2026-56312: Improper Authentication

Capgo before 12.128.2 contains an improper validation vulnerability in the acceptinvitation endpoint that creates user accounts before captcha validation is enforced. Attackers can bypass captcha protection by sending POST requests with invalid captcha tokens to create unwanted accounts and burn...

CVE-2026-56331: Generation of Error Message Containing Sensitive Information

Capgo before 12.128.2 contains improper error handling in the /private/acceptinvitation endpoint that returns HTTP 500 instead of safe 4xx errors when magicinvitestring is invalid. Attackers can trigger this vulnerability using only the public key by submitting malformed magicinvitestring values ...