How exploitable is this vulnerability in practice?

Exploitability is high when attackers can access JWT verification endpoints without strict rate limiting or monitoring. Because the JWT secret is derived from the admin's password using MD5, an attacker who can perform many verification attempts can systematically brute-force the password and gain administrative access.

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

Typically, only network access to the affected DataEase instance and the relevant JWT validation endpoints is required. The attacker does not need valid credentials initially, as they are attempting to recover the admin's password via brute force.

What is the safest general fix pattern?

The safest approach is to completely separate user passwords from JWT signing keys. Use a randomly generated, high-entropy server-side secret (or keys managed by a dedicated key management system) for JWT signing, and handle user passwords exclusively via secure password hashing for verification.

Severity:

CRITICAL RISK

(9.8)

Inadequate Password-Derived JWT Secret (CWE-522) in DataEase Authentication

CVE-2026-23958

Published:

Jan 21, 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:

Inadequate Credential Management

CWE:

CWE-522

Impact:

Authentication Bypass and Account Compromise

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Inadequate Credential Management

CWE:

CWE-522

Impact:

Authentication Bypass and Account Compromise

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

Inadequate Password-Derived JWT Secret (CWE-522) in DataEase Authentication

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

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