CVE-2026-56073

Cap-go before 12.128.2 contains an authentication bypass vulnerability in OTP verification that allows attackers to bypass email verification by modifying server responses. Attackers can intercept OTP verification requests and manipulate HTTP responses to falsely mark verification successful, enabling unauthorized 2FA enablement and account takeover.

CVSS v3 9.4 CRITICAL

9.4^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/Cap-go/capgo/security/advisories/GHSA-x2gq-85v8-j9v4
https://www.vulncheck.com/advisories/cap-go-otp-bypass-via-response-manipulation-in-email-verification
https://github.com/Cap-go/capgo/security/advisories/GHSA-x2gq-85v8-j9v4

Configurations

No configuration.

History

22 Jun 2026, 16:16

Type	Values Removed	Values Added
References	~~() https://github.com/Cap-go/capgo/security/advisories/GHSA-x2gq-85v8-j9v4 -~~	() https://github.com/Cap-go/capgo/security/advisories/GHSA-x2gq-85v8-j9v4 -

19 Jun 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-19 22:16

Updated : 2026-06-22 19:49

NVD link : CVE-2026-56073

Mitre link : CVE-2026-56073

CVE.ORG link : CVE-2026-56073

JSON object : View

Products Affected

No product.

CWE

CWE-345

Insufficient Verification of Data Authenticity

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