CVE-2026-56081

Cap-go - Account Lockout via 2FA Misconfiguration on Unverified Email

State
Published
Severity
9.3 Critical
Published
Jun 19, 2026
Updated
Jun 22, 2026
Reserved
Jun 18, 2026

Read the record on cve.org

Description

Cap-go before 12.128.2 contains an authentication logic flaw that lets an attacker register and control an account bound to a victim's email address before that email is verified. By enabling two-factor authentication on the pre-registered account, the attacker gains control over the account claimed under the victim's identity, allowing them to read and modify its state and enforce organization-level policies, while the legitimate user is denied access to the account tied to their own email.

Scores

CVSSScoreVectorSource
4.09.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:NVulnCheck
3.19.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NVulnCheck

Weaknesses

  • CWE-640 Weak Password Recovery Mechanism for Forgotten Password

Affected Products

ProductVersions
capgoCap-go
  • before 12.128.2Affected
  • 12.128.2Not affected

References

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