CVE-2026-3965Public exploitNetwork attack vector

Authenticated command execution via case-sensitive API bypass

Published Mar 11, 2026 · Updated Mar 11, 2026

Command injection in Qinglong 2.20.0 through 2.20.1 allows remote authenticated users to execute operating-system commands through its API. The JWT path filter in back/loaders/express.ts compares API paths case-sensitively, so a mixed-case /apI path bypasses authorization before system.ts passes the command value directly to exec. The published assessment requires low privileges and no user interaction; successful exploitation runs commands with the Qinglong service account's permissions.

CVSS severity6.3
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Qinglong 2.20.0 through 2.20.1 allows remote authenticated users to execute operating-system commands through its API. The JWT path filter in back/loaders/express.ts compares API paths case-sensitively, so a mixed-case /apI path bypasses authorization before system.ts passes the command value directly to exec. The published assessment requires low privileges and no user interaction; successful exploitation runs commands with the Qinglong service account's permissions.

The record

CVE
CVE-2026-3965
Published
Mar 11, 2026
Updated
Mar 11, 2026
Vendor
whyour
Product
Qinglong
Classifications
CWE-693, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.20.0
  2. Affected versionversion=2.20.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

whyour · Qinglongversion=2.20.0; version=2.20.1

Published CVSS scores

6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-693Protection Mechanism Failure
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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