Patch Forecast
Amber warning
Patch this week.

CVE-2026-84315 · GHSA-5v7c-xpfp-p65m

Nginx UI OTP secure-session step-up is missing on sensitive mutation routes

Risk score
65/100
CVSS
8.3 v3.1
Exploit chance (30 days)
0.3%
Published
12 Oct 2026

Open in the live forecast Today's forecast

What to know

What it is
Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, Nginx UI does not apply RequireSecureSession to multiple authenticated mutation routes even though OTP-enabled users are expected to present a fresh X-Secure-Session-ID for sensitive actions. A stolen authenticated session can therefore create …
Affected
github.com/0xJacky/Nginx-UI (go) < 1.9.10-0.20260703131214-23d1934099b0
Fix
Upgrade github.com/0xJacky/Nginx-UI to 1.9.10-0.20260703131214-23d1934099b0 or later.
Exploitation
No known exploitation

Story map

Story map: github.com/0xJacky/Nginx-UITHE FLAWSTHE FIXCVE-2026-84315Nginx UI OTP secure-sessionstep-up is missing on sensitivemutation routesCVSS 8.3 · EPSS 0%CVE-2026-84316Nginx UI: nginx config directivedenylist (ValidateConfigFile) isbypassable via same-line ";"…CVSS 8.8 · EPSS 1%CVE-2026-84317Nginx UI: MCP nginx_config_addskips config directivevalidation → authenticated…CVSS 8.8 · EPSS 0%CVE-2026-84318Nginx UI: MCP`nginx_config_add` BypassesDirective Validation —…CVSS 8.8 · EPSS 1%Upgrade…2.4.1or later on your release lineWho is exposedgithub.com/0xJacky/Nginx-UI(go) <1.9.10-0.20260703131214-23d1934099b0AMBER · PATCH THIS WEEKgithub.com/0xJacky/Nginx-UINginx UI is a web user interfacefor the Nginx web server. Priorto 2.4.1,config.ValidateConfigDirectivessplits configuration by newlineand checks only the firstdirective token on each line…Where it standsPublic proof of conceptCONNECTS TOSame weaknessMissing authorisation (CWE-862)399 other warnings in 30 days →
Story map: the flaws, the fix, how it unfolded and what it connects to. Boxes link to the record or article.

At a glance

github.com/0xJacky/Nginx-UI: Amber, patch this week. Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, config.ValidateConfigDirectives splits configuration by newline and checks only the first directive token on each line even though Nginx permits multiple semicolon-separated directives on one line. An authenticated caller can place a benign dir…

The flaws

  • CVE-2026-84315: Nginx UI OTP secure-session step-up is missing on sensitive mutation routes (CVSS 8.3 · EPSS 0%)
  • CVE-2026-84316: Nginx UI: nginx config directive denylist (ValidateConfigFile) is bypassable via same-line ";" separation → authenticated directive injection (RCE on the official image) (CVSS 8.8 · EPSS 1%)
  • CVE-2026-84317: Nginx UI: MCP nginx_config_add skips config directive validation → authenticated nginx directive injection (RCE on the official image) (CVSS 8.8 · EPSS 0%)
  • CVE-2026-84318: Nginx UI: MCP `nginx_config_add` Bypasses Directive Validation — Authenticated RCE (CVSS 8.8 · EPSS 1%)

The fix

Upgrade github.com/0xJacky/Nginx-UI: 2.4.1 or later on your release line

Who is exposed: github.com/0xJacky/Nginx-UI (go) < 1.9.10-0.20260703131214-23d1934099b0

Where it stands

  • Public proof of concept

Connects to

Why it is Amber

  • CVSS 8.3 high
  • On your watchlist: nginx, Go

Affected packages

PackageEcosystemVulnerableFixed in
github.com/0xJacky/Nginx-UIgo< 1.9.10-0.20260703131214-23d1934099b01.9.10-0.20260703131214-23d1934099b0

References

Original description

Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, Nginx UI does not apply RequireSecureSession to multiple authenticated mutation routes even though OTP-enabled users are expected to present a fresh X-Secure-Session-ID for sensitive actions. A stolen authenticated session can therefore create or alter automatic backups, DNS credentials and records, certificates and ACME users, Nginx control settings, and site or stream automation without completing the OTP or passkey step-up. This issue is fixed in version 2.4.1.

Last activity 12 Oct 2026. Patch Forecast updates every hour.