---
id: CVE-2026-116485
title: >-
  danmu_api before 1.21.7 Authentication Bypass via Default Token in Env
  Endpoints
summary: >-
  danmu_api before 1.21.7 contains an authentication bypass vulnerability that
  allows unauthenticated attackers to modify server environment configuration
  when the default TOKEN is used and ADMIN_TOKEN is unset. Attackers can send
  POST req…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-306
vendor: huangxd-
product: danmu_api
affected:
  - danmu_api < 1.21.7
published: '2026-10-26'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T13:08:51.363Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-116485'
references:
  - url: 'https://github.com/huangxd-/danmu_api/issues/531'
    label: 'GitHub Issue #531'
  - url: >-
      https://github.com/huangxd-/danmu_api/commit/6e93478064a0ce4e7ed3bc2eae88adaad1b7ab02
    label: Fix Commit
  - url: >-
      https://github.com/huangxd-/danmu_api/blob/5ef63a01bae7c4bad4dcd7bafbbcdcf33aa82564/danmu_api/worker.js#L223-L244
  - url: 'https://github.com/huangxd-/danmu_api'
  - url: >-
      https://www.vulncheck.com/advisories/danmu-api-before-1.21.7-authentication-bypass-via-default-token-in-env-endpoints
    label: >-
      VulnCheck Advisory: danmu_api before 1.21.7 Authentication Bypass via
      Default Token in Env Endpoints
tags:
  - cve.org
ingestedAt: '2026-10-26T14:27:31.829Z'
---

## Overview

danmu_api before 1.21.7 contains an authentication bypass vulnerability that allows unauthenticated attackers to modify server environment configuration when the default TOKEN is used and ADMIN_TOKEN is unset. Attackers can send POST requests to /api/env/set, /api/env/add, or /api/env/del to set ADMIN_TOKEN, lock out operators, redirect OTHER_SERVER or PROXY_URL for SSRF, and trigger redeployment.

## Affected

- `danmu_api < 1.21.7`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.