whyour qinglong up to 2.20.1 API Interface back/loaders/express.ts command protection mechanism

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.51

Summaryinfo

A vulnerability, which was classified as critical, was found in whyour qinglong up to 2.20.1. Affected by this vulnerability is an unknown functionality of the file back/loaders/express.ts of the component API Interface. The manipulation of the argument command results in protection mechanism. This vulnerability is cataloged as CVE-2026-3965. The attack may be launched remotely. Furthermore, there is an exploit available. You should upgrade the affected component. The code maintainer was informed beforehand about the issues. He reacted very fast and highly professional.

Detailsinfo

A vulnerability was found in whyour qinglong up to 2.20.1. It has been classified as critical. Affected is some unknown functionality of the file back/loaders/express.ts of the component API Interface. The manipulation of the argument command with an unknown input leads to a protection mechanism vulnerability. CWE is classifying the issue as CWE-693. The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-3965. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details and a public exploit are known.

The exploit is shared for download at github.com. It is declared as proof-of-concept. The code maintainer was informed beforehand about the issues. He reacted very fast and highly professional.

Upgrading to version 2.20.2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 6bec52dca158481258315ba0fc2f11206df7b719 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at CNNVD (CNNVD-202603-2472) and EUVD (EUVD-2026-11489). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.3
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Protection mechanism
CWE: CWE-693
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: qinglong 2.20.2
Patch: 6bec52dca158481258315ba0fc2f11206df7b719

Timelineinfo

03/11/2026 Advisory disclosed
03/11/2026 +0 days VulDB entry created
03/17/2026 +6 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-3965 (🔒)
GCVE (CVE): GCVE-0-2026-3965
GCVE (VulDB): GCVE-100-350394
EUVD: 🔒
CNNVD: CNNVD-202603-2472 - qinglong 安全漏洞

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/11/2026 14:19
Updated: 03/17/2026 05:56
Changes: 03/11/2026 14:19 (63), 03/12/2026 02:32 (1), 03/13/2026 18:59 (6), 03/14/2026 18:58 (1), 03/16/2026 07:08 (1), 03/17/2026 05:56 (31)
Complete: 🔍
Submitter: a7cc
Cache ID: 216::103

Submitinfo

Accepted

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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