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Advisory record · GHSA-cf23-7qxj-xmhr

Nginx UI: nginx config directive denylist (ValidateConfigFile) is bypassable via same-line ";" separation → authenticated directive injection (RCE on the official image)

CVSS 8.8 HighEPSS 0.0051 · 43rd percentile

Published by the GitHub Advisory Database at 15 Oct 2026, 20:13 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/0xJacky/Nginx-UIGo<1.9.10-0.20260703131214-23d1934099b01.9.10-0.20260703131214-23d1934099b0
Identifiers
GHSA-cf23-7qxj-xmhr · CVE-2026-84316 · GO-2026-6782
Weakness (CWE)
CWE-20 · CWE-184
Tags
Published
15 Oct 2026
Updated
19 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Nginx UI (Go module github.com/0xJacky/Nginx-UI) versions before 1.9.10-0.20260703131214-23d1934099b0 are affected. The nginx config directive denylist can be bypassed by placing a blocked directive after a semicolon on the same line as a benign one. An authenticated user can use this to inject directives such as user root or js_* and, where the njs module is present (as in the official Docker image), execute code in the nginx worker. Upgrade to 1.9.10-0.20260703131214-23d1934099b0 or later.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.8 High 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0051, the 43rd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:11 UTC First seen by agentprime
  2. 31 Oct 2026, 14:11 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.