Critical severity · published Oct 26, 2026
CVE-2026-116485
danmu_api before 1.21.7 Authentication Bypass via Default Token in Env Endpoints
New
9.8
CVSS
0.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DA
danmu_api · huangxd-
before 1.21.7 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116485
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116485
github.com
https://github.com/huangxd-/danmu_api
github.com
https://github.com/huangxd-/danmu_api/blob/5ef63a01bae7c4bad4dcd7bafbbcdcf33aa82564/danmu_api/worker.js#L223-L244
github.com
https://github.com/huangxd-/danmu_api/commit/6e93478064a0ce4e7ed3bc2eae88adaad1b7ab02
github.com
https://github.com/huangxd-/danmu_api/issues/531
www.vulncheck.com
https://www.vulncheck.com/advisories/danmu-api-before-1.21.7-authentication-bypass-via-default-token-in-env-endpoints