---
title: "CVE-2026-116485: danmu_api - Authentication Bypass"
description: "danmu_api before 1.21.7 contains an authentication bypass caused by default TOKEN usage and unset ADMIN_TOKEN, letting unauthenticated attackers modify server environment configuration via specific API endpoints, exploit requires default token configuration."
url: https://panop.io/threat-heartbeat/CVE-2026-116485/
---

# CVE-2026-116485 danmu\_api - Authentication Bypass

danmu\_api before 1.21.7 contains an authentication bypass caused by default TOKEN usage and unset ADMIN\_TOKEN, letting unauthenticated attackers modify server environment configuration via specific API endpoints, exploit requires default token configuration.

CVSS base score 9.8 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-116485)

## Details

Type

Authentication Bypass

Impact

Broken Authentication, Denial Of Service, Server Side Request Forgery, Data Tampering

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Published

26 October 2026

Updated

27 October 2026

Weakness

[CWE-306](https://cwe.mitre.org/data/definitions/306.html)

## Vendor fix

Update to version 1.21.7 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-116485](https://nvd.nist.gov/vuln/detail/CVE-2026-116485)
- [https://github.com/huangxd-/danmu\_api/blob/5ef63a01bae7c4bad4dcd7bafbbcdcf33aa82564/danmu\_api/worker.js#L223-L244](https://github.com/huangxd-/danmu_api/blob/5ef63a01bae7c4bad4dcd7bafbbcdcf33aa82564/danmu_api/worker.js#L223-L244)
- [https://github.com/huangxd-/danmu\_api/commit/6e93478064a0ce4e7ed3bc2eae88adaad1b7ab02](https://github.com/huangxd-/danmu_api/commit/6e93478064a0ce4e7ed3bc2eae88adaad1b7ab02)
- [https://github.com/huangxd-/danmu\_api/issues/531](https://github.com/huangxd-/danmu_api/issues/531)
- [https://www.vulncheck.com/advisories/danmu-api-before-1.21.7-authentication-bypass-via-default-token-in-env-endpoints](https://www.vulncheck.com/advisories/danmu-api-before-1.21.7-authentication-bypass-via-default-token-in-env-endpoints)
- [https://github.com/huangxd-/danmu\_api](https://github.com/huangxd-/danmu_api)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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