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CVE-2026-3965

MEDIUM CVSS 4.0: 5.3
Updated Mar 12, 2026
Express
Parameter Value
CVSS 5.3 (MEDIUM)
Type CWE-693
Vendor Express
Public PoC No

A security vulnerability has been detected in whyour qinglong up to 2.20.1. Affected is an unknown function of the file back/loaders/express.ts of the component API Interface. The manipulation of the argument command leads to protection mechanism failure.

The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 2.20.2 is able to address this issue.

The identifier of the patch is 6bec52dca158481258315ba0fc2f11206df7b719. It is advisable to upgrade the affected component. The code maintainer was informed beforehand about the issues.

He reacted very fast and highly professional.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption

CVSS Vector v4.0

Weakness Type (CWE)