CVE-2026-56073: Insufficient Verification of Data Authenticity in Cap-go capgo
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.
AI Analysis
Technical Summary
CVE-2026-56073 describes an authentication bypass vulnerability in Cap-go's OTP verification mechanism prior to version 12.128.2. Attackers can intercept OTP verification requests and alter HTTP responses to falsely indicate successful verification, thereby bypassing email verification controls. This enables unauthorized two-factor authentication enablement and facilitates account takeover. The vulnerability is remotely exploitable without privileges or user interaction, with high impact on confidentiality and integrity. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation allows attackers to bypass email verification during OTP checks, enabling unauthorized activation of two-factor authentication and potential account takeover. This compromises account security and user authentication integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, monitor for updates from the vendor and consider additional compensating controls to protect OTP verification processes.
CVE-2026-56073: Insufficient Verification of Data Authenticity in Cap-go capgo
Description
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 v4.0
Score 9.3critical
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-56073 describes an authentication bypass vulnerability in Cap-go's OTP verification mechanism prior to version 12.128.2. Attackers can intercept OTP verification requests and alter HTTP responses to falsely indicate successful verification, thereby bypassing email verification controls. This enables unauthorized two-factor authentication enablement and facilitates account takeover. The vulnerability is remotely exploitable without privileges or user interaction, with high impact on confidentiality and integrity. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation allows attackers to bypass email verification during OTP checks, enabling unauthorized activation of two-factor authentication and potential account takeover. This compromises account security and user authentication integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, monitor for updates from the vendor and consider additional compensating controls to protect OTP verification processes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-06-18T15:57:20.434Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a35be95daaa79a87d39ec64
Added to database: 6/19/2026, 10:11:33 PM
Last enriched: 6/19/2026, 10:26:37 PM
Last updated: 6/19/2026, 11:16:59 PM
Views: 6
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