Vulnerability Description
Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.8, an authenticated user can call GET /api/settings and retrieve sensitive configuration values, including node.secret. The same node.secret is accepted by AuthRequired() through the X-Node-Secret header (or node_secret query parameter), causing the request to be treated as authenticated via the trusted-node path and associated with the init user. This issue has been patched in version 2.3.8.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nginxui | Nginx Ui | < 2.3.8 |
Related Weaknesses (CWE)
References
- https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.8Release Notes
- https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-7jrr-xw9c-mj39ExploitVendor Advisory
- https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-7jrr-xw9c-mj39ExploitVendor Advisory
FAQ
What is CVE-2026-42220?
CVE-2026-42220 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.8, an authenticated user can call GET /api/settings and retrieve sensitive configuration values, including node.secret. ...
How severe is CVE-2026-42220?
CVE-2026-42220 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-42220?
Check the references section above for vendor advisories and patch information. Affected products include: Nginxui Nginx Ui.