CVE-2026-56081

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.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/Cap-go/capgo/security/advisories/GHSA-j4cx-5pw6-5v5j
https://www.vulncheck.com/advisories/cap-go-account-lockout-via-2fa-misconfiguration-on-unverified-email
https://github.com/Cap-go/capgo/security/advisories/GHSA-j4cx-5pw6-5v5j

Configurations

No configuration.

History

22 Jun 2026, 19:17

Type	Values Removed	Values Added
References	~~() https://github.com/Cap-go/capgo/security/advisories/GHSA-j4cx-5pw6-5v5j -~~	() https://github.com/Cap-go/capgo/security/advisories/GHSA-j4cx-5pw6-5v5j -

19 Jun 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-19 22:16

Updated : 2026-06-22 19:17

NVD link : CVE-2026-56081

Mitre link : CVE-2026-56081

CVE.ORG link : CVE-2026-56081

JSON object : View

Products Affected

No product.

CWE

CWE-640

Weak Password Recovery Mechanism for Forgotten Password

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