← CVE Intelligence

CVE-2026-84360

Nginx UI: OTP secure-session step-up can be bypassed via MCP configuration tools PUBLISHED

Description (CNA)

Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, the HTTP configuration mutation routes require RequireSecureSession, but /mcp and /mcp_message require only ordinary authentication before exposing nginx_config_add and nginx_config_modify. An OTP-enabled user with a normal JWT but no valid X-Secure-Session-ID can therefore create or modify Nginx configuration and trigger reload behavior through MCP, bypassing the intended step-up control. This issue is fixed in version 2.4.1.

Affected (CNA)

Vendor / productVersions
0xJacky / nginx-uiaffected < 2.4.1

CWE

CWE-288

References

ADP enrichment

CISA-ADP

No English description supplied.