Auth bypass in Huangxd- Danmu API
CVE-2026-116485
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.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/huangxd-/danmu_api/issues/531 (issue-tracking)
- github.com/huangxd-/danmu_api/commit/6e93478064a0ce4e7ed3bc2eae88adaad1b7ab02 (patch)
- github.com/huangxd-/danmu_api/blob/5ef63a01bae7c4bad4dcd7bafbbcdcf33aa82564/dan… (technical-description)
- github.com/huangxd-/danmu_api (product)
- www.vulncheck.com/advisories/danmu-api-before-1.21.7-authentication-bypass-via-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-116485?
- CVE-2026-116485 is a critical-severity vulnerability in Huangxd- Danmu API, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-10-26.
- How severe is CVE-2026-116485?
- Critical severity. CVSS v3 base score is 9.8 out of 10.