Vulnerability · Published Jul 15, 2026 · Assigned by GitHub_M

CVE-2026-55445Qinglong: Incomplete fix for CVE-2026-3965: Improper Authentication

Critical 9.3

In plain English

A critical-severity improper authentication in qinglong from whyour. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)9.3Critical

Exploit odds (30 days)0.5%top 55.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	@whyour/qinglong	2.20.1	GHSA-v667-gc2r-2xm7

Affected products (as reported)

Vendor	Product	Versions
whyour	qinglong	< 2.20.1

Weakness: CWE-287 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

References

https://github.com/whyour/qinglong/security/advisories/GHSA-v667-gc2r-2xm7 x_refsource_CONFIRM
https://github.com/whyour/qinglong/pull/2941 x_refsource_MISC
https://github.com/whyour/qinglong/commit/6bec52dca158481258315ba0fc2f11206df7b719 x_refsource_MISC