GHSA-v667-gc2r-2xm7

Опубликовано: 20 авг. 2026

Источник: github

Github: Прошло ревью

CVSS4: 9.3

Описание

Qinglong has an incomplete fix for CVE-2026-3965: Improper Authentication

Summary

The init guard middleware in Qinglong only checks /api/user/init paths but not /open/user/init, which is whitelisted from JWT authentication and rewritten to /api/user/init after the guard has already passed, allowing unauthenticated admin credential reset on initialized instances.

Affected Package

Ecosystem: npm
Package: whyour/qinglong
Affected versions: < 6bec52dca158
Patched versions: >= 6bec52dca158

Severity

Medium

CWE

CWE-287 — Improper Authentication

Details

The Qinglong panel has an initialization endpoint (/api/user/init) that allows setting admin credentials. Once the system is initialized, an init guard middleware is supposed to block further calls. The middleware in back/loaders/express.ts only checks:

!['/api/user/init', '/api/user/notification/init'].includes(pathLower)

However, the application also has a URL rewrite rule: rewrite('/open/*', '/api/$1'). The /open/* paths are whitelisted from JWT authentication.

The middleware ordering creates the bypass: first, JWT auth sees /open/* paths match the whitelist regex and skips authentication. Second, the init guard only checks for /api/user/init -- /open/user/init passes through as "not an init path". Third, the URL rewrite transforms /open/user/init to /api/user/init after the guard has already passed.

This means an unauthenticated attacker can send PUT /open/user/init with new credentials to reset the admin account on any Qinglong panel instance, gaining full administrative access.

PoC

/** * CVE-2026-3965 - Qinglong Panel /open/user/init Auth Bypass * * The init guard middleware only checks /api/user/init paths. * But /open/user/init is whitelisted from JWT auth and rewritten * to /api/user/init via express-urlrewrite AFTER the guard. */ "use strict"; // Simulate the init guard middleware exactly as in the source function initGuardMiddleware(reqPath, authInfo) { const pathLower = reqPath.toLowerCase(); // Exact check from the vulnerable source if (!['/api/user/init', '/api/user/notification/init'].includes(pathLower)) { return { action: "next" }; // passes through } let isInitialized = true; if ( Object.keys(authInfo).length === 2 && authInfo.username === 'admin' && authInfo.password === 'admin' ) { isInitialized = false; } if (isInitialized) { return { action: "block", code: 450, message: "Error" }; } else { return { action: "next" }; } } const authInfo = { username: "realAdmin", password: "str0ngP@ss!" }; console.log("System state: initialized (non-default credentials)"); // Test 1: Direct /api/user/init is blocked const test1 = initGuardMiddleware("/api/user/init", authInfo); console.log("\n[Test 1] PUT /api/user/init:"); console.log(" Guard result:", test1.action); console.log(" Blocked:", test1.action === "block"); // Test 2: /open/user/init BYPASSES init guard const test2 = initGuardMiddleware("/open/user/init", authInfo); console.log("\n[Test 2] PUT /open/user/init:"); console.log(" Guard result:", test2.action); console.log(" Bypassed guard:", test2.action === "next"); if (test2.action === "next") { const rewrittenPath = "/open/user/init".replace(/^\/open\//, "/api/"); console.log(" After rewrite:", rewrittenPath); console.log(" Reaches init handler: true"); } if (test1.action === "block" && test2.action === "next") { console.log("\nVULNERABILITY CONFIRMED: /open/user/init bypasses the init guard"); console.log("An attacker can reset admin credentials on an initialized instance."); process.exit(0); } else { console.log("\nVULNERABILITY NOT CONFIRMED"); process.exit(1); }

Steps to reproduce:

git clone https://github.com/whyour/qinglong /tmp/qinglong_test
cd /tmp/qinglong_test && git checkout 6bec52dc~1
node poc.js

Expected output:

VULNERABILITY CONFIRMED /open/user/init bypasses the init guard; the guard only checks /api/user/init but /open/ path is whitelisted and rewritten after.

Impact

An unauthenticated attacker can send PUT /open/user/init with new credentials to reset the admin account on any Qinglong panel instance. This provides full administrative access, enabling the attacker to execute arbitrary cron jobs and scripts on the server.

Suggested Remediation

Add /open/user/init and /open/user/notification/init to the init guard check list. Alternatively, move the URL rewrite middleware to run before the init guard. Consider implementing the init guard at the handler level rather than as path-based middleware.

References

Incomplete fix commit: https://github.com/whyour/qinglong/commit/6bec52dca158481258315ba0fc2f11206df7b719
Original CVE: CVE-2026-3965

Ссылки

Пакеты

Наименование

@whyour/qinglong

npm

Затронутые версииВерсия исправления

< 2.20.1

2.20.1

EPSS

Процентиль: 49%

0.00664

Низкий

9.3 Critical

CVSS4

CVE ID

CVE-2026-55445

Дефекты

CWE-287

Связанные уязвимости

CVE-2026-55445

nvd

2 месяца назад

Qinglong is a timed task management platform supporting Python3, JavaScript, Shell, and Typescript. Prior to 2.20.1, the init guard middleware in back/loaders/express.ts checks /api/user/init but not /open/user/init, while rewrite('/open/*', '/api/$1') rewrites the whitelisted /open/* path after JWT authentication and the guard have passed; an unauthenticated attacker can send PUT /open/user/init to reset administrator credentials on an initialized instance. This issue is fixed in 2.20.1.

EPSS

Процентиль: 49%

0.00664

Низкий

9.3 Critical

CVSS4

CVE ID

CVE-2026-55445

Дефекты

CWE-287