---
title: "CVE-2026-55445: Qinglong has an incomplete fix for CVE-2026-3965: Improper Authentication"
url: https://erroneo.us/security/cve/CVE-2026-55445/
description: "CVE-2026-55445 (@whyour/qinglong (npm)): Qinglong is a timed task management platform supporting Python3, JavaScript, Shell, and Typescript. Prior to…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-07-15
date_modified: 2026-08-20
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-55445"
kev: false
cvss: 9.3
epss: 0.00664
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-55445: Qinglong has an incomplete fix for CVE-2026-3965: Improper Authentication

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.7% , percentile 51: FIRST’s model estimates a 0.7% chance of exploitation activity in the next 30 days, higher than 51% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes @whyour/qinglong (npm) < 2.20.1, fixed in 2.20.1 . Check your lockfile, including transitive dependencies.

## What it is

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

- npm `@whyour/qinglong` < 2.20.1 → fixed: 2.20.1

## Affected products (CVE record)

- whyour qinglong: < 2.20.1

## Severity

- GitHub_M CVSS 4.0: 9.3 `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`
- GitHub CVSS 4.0: 9.3 `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`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.66% probability of exploitation activity in the next 30 days; percentile 51.

## Sources

- [GitHub Advisory GHSA-v667-gc2r-2xm7](https://github.com/advisories/GHSA-v667-gc2r-2xm7)
- [CVE.org record CVE-2026-55445](https://www.cve.org/CVERecord?id=CVE-2026-55445)
- [NVD entry CVE-2026-55445](https://nvd.nist.gov/vuln/detail/CVE-2026-55445)
- [github.com](https://github.com/whyour/qinglong/security/advisories/GHSA-v667-gc2r-2xm7)
- [github.com](https://github.com/whyour/qinglong/pull/2941)
- [github.com](https://github.com/whyour/qinglong/commit/6bec52dca158481258315ba0fc2f11206df7b719)

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Source page: https://erroneo.us/security/cve/CVE-2026-55445/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt