CVE-2026-116485 Details
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.
A vulnerability allowing authentication bypass has been identified in danmu_api versions prior to 1.21.7. This issue arises from the default TOKEN value of '87654321' being active while the ADMIN_TOKEN is unset. Exploitation of this vulnerability allows unauthenticated attackers to send POST requests to the '/api/env/set', '/api/env/add', or '/api/env/del' endpoints. Attackers can manipulate the ADMIN_TOKEN, disrupt operator access, redirect server environment variables for Server-Side Request Forgery (SSRF) attacks, and initiate a redeployment process.
Users are advised to update danmu_api to version 1.21.7 or later, and to configure a custom ADMIN_TOKEN before deploying the application.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 26, 2026CISA-ADP
Assessed Nov 2, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/huangxd-/danmu_api | [email protected] | ProductSource CodeVendor |
| https://github.com/huangxd-/danmu_api/blob/5ef63a01bae7c4bad4dcd7bafbbcdcf33aa82564/danmu_api/worker.js#L223-L244 | [email protected] | Source CodeVendor |
| https://github.com/huangxd-/danmu_api/commit/6e93478064a0ce4e7ed3bc2eae88adaad1b7ab02 | [email protected] | Source CodeVendor |
| https://github.com/huangxd-/danmu_api/issues/531 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://www.vulncheck.com/advisories/danmu-api-before-1.21.7-authentication-bypass-via-default-token-in-env-endpoints | [email protected] | Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-306 | Missing Authentication for Critical Function | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| huangxd- danmu_api | >= 0, < 1.21.7 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 2, 2026 | CVE Modified | CISA-ADP |
| Oct 26, 2026 | New CVE Received | [email protected] |