CVE-2026-3965

MEDIUM EXPLOITED

Whyour Qinglong <=2.20.1 - Auth Bypass

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2026-3965 has been observed exploited in the wild (reported by VulnCheck KEV).

Description

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.

References (9)

Core 9
Core References
Permissions Required, VDB Entry vdb-entry technical-description
https://vuldb.com/?id.350394
Permissions Required, VDB Entry signature permissions-required
https://vuldb.com/?ctiid.350394
Permissions Required, VDB Entry third-party-advisory
https://vuldb.com/?submit.768861
Issue Tracking issue-tracking
https://github.com/A7cc/cve/issues/6
Issue Tracking issue-tracking patch
https://github.com/whyour/qinglong/pull/2941
Issue Tracking exploit issue-tracking
https://github.com/A7cc/cve/issues/6#issue-3999235307

Scores

CVSS v3 6.3
EPSS 0.0044
EPSS Percentile 34.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

VulnCheck KEV 2026-04-06
CWE
CWE-693
Status published
Products (4)
whyour/qinglong 0 - 2.20.2npm
whyour/qinglong 2.20.0
whyour/qinglong 2.20.1
whyour/qinglong 2.20.2
Published Mar 12, 2026
Tracked Since Mar 12, 2026