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CVE-2026-42220

nginx-ui: Authenticated settings disclosure exposes node.secret and enables trusted-node authentication abuse, backup exfiltration, and restore-based nginx-ui state rollback

Published: May 4, 2026Updated: May 6, 2026 Sources: CVE List NVD BDUCWE-200
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.3%
Top 78.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-200CWE-863

Affected Products

nginx-ui0xJacky
Mixed
Cloud & SaaS / saas-application
Nginx UIСообщество свободного программного обеспечения
On-prem
Web & CMS Plugins
nginx uinginxui
On-prem
Networking Infrastructure / network-management
0xjackyindividual-devCloud & SaaSaka nginx-ui
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
nginxuicommercialNetworking Infrastructureaka nginx ui, nginxui

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

3 techniques
Collection
Initial Access
View detailed technique mapping

References

https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-7jrr-xw9c-mj39
github.com
https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.8
github.com
https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.8
github.com

Timeline

Published
May 4, 2026
Last Updated
May 6, 2026

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