How broadly exploitable is this vulnerability?

Exploitability is limited to scenarios where an attacker already has valid staff credentials or can otherwise control the login flow for a staff account. It does not allow arbitrary, unauthenticated users to gain access without credentials, but it significantly reduces the protection offered by email 2FA for those accounts.

What level of access does an attacker need to exploit this issue?

The attacker typically needs knowledge of a staff user's username and password or equivalent primary authentication factor. Once they have those, the logic flaw in the 2FA mechanism can allow them to log in without completing the email second factor.

What is the safest general fix pattern for developers?

The safest pattern is to enforce multi-factor authentication entirely on the server side, ensuring that no privileged session is created or upgraded until all configured authentication factors have been successfully validated. This includes centralizing 2FA checks, validating session state at each privileged endpoint, and avoiding any logic branches that can skip 2FA under special conditions.

Severity:

HIGH RISK

(8.1)

Authentication Bypass in Email 2FA (CWE-287) for Ghost Staff Accounts

CVE-2026-22594

Published:

Jan 9, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Authentication Bypass

CWE:

CWE-287

Impact:

Bypass of Two-Factor Authentication and Account Protection

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

Vulnerability Type

Category:

Authentication Bypass

CWE:

CWE-287

Impact:

Bypass of Two-Factor Authentication and Account Protection

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

Detect vulnerable code directly in pull requests, so CVEs are fixed before merge.

Get Started

Ship clean & secure code faster

START 14 DAYS FREE TRIAL

BOOK A DEMO

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Authentication Bypass in Email 2FA (CWE-287) for Ghost Staff Accounts

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Product

Pricing

Company

Legal

Developers

Compare

Product

Pricing

Company

Legal

Developers

Compare

Product

Pricing

Company

Legal

Developers

Compare