Cap-go < v12.128.2 Account Takeover via Unauthenticated Email Change Mechanism

CVE-2026-53981

What is CVE-2026-53981?

Cap-go prior to 12.128.2 contains an account takeover vulnerability in its email change mechanism that allows an attacker with temporary authenticated session access to change the registered email address without re-authentication such as password or MFA verification. Attackers can redirect verification to an attacker-controlled email address and subsequently perform a password reset to permanently take over the victim's account.

References