CVE-2026-84316 Nginx UI: nginx config directive denylist (ValidateConfigFile) is bypassable via same-line ";" separation → authenticated directive injection (RCE on the official image)

🗓️ 12 Oct 2026 21:05:06Reported by GitHub_MType

Authenticated directive injection in Nginx UI allowing RCE on the official image.

Reporter	Title	Published	Views	Family All 14
BDU FSTEC	Nginx UI Code Execution	16 Oct 202600:00	–	bdu_fstec
Circl	CVE-2026-84316	12 Oct 202621:59	–	circl
CVE	CVE-2026-84316	12 Oct 202621:05	–	cve
EUVD	EUVD-2026-97906	15 Oct 202620:13	–	euvd
Github Security Blog	Nginx UI: nginx config directive denylist (ValidateConfigFile) is bypassable via same-line ";" separation → authenticated directive injection (RCE on the official image)	15 Oct 202620:13	–	github
Mend	CVE-2026-84316	12 Oct 202621:05	–	mend
NVD	CVE-2026-84316	12 Oct 202621:17	–	nvd
osv_cve	CVE-2026-84316 Nginx UI: nginx config directive denylist (ValidateConfigFile) is bypassable via same-line ";" separation → authenticated directive injection (RCE on the official image)	12 Oct 202621:05	–	osv_cve
osv_ghsa	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)	15 Oct 202620:13	–	osv_ghsa
osv_go	GO-2026-6782 Nginx UI: nginx config directive denylist (ValidateConfigFile) is bypassable via same-line ";" separation → authenticated directive injection (RCE on the official image) in github.com/0xJacky/Nginx-UI	19 Oct 202621:08	–	osv_go

[
  {
    "vendor": "0xJacky",
    "product": "nginx-ui",
    "versions": [
      {
        "version": "< 2.4.1",
        "status": "affected"
      }
    ]
  }
]

Source	Link
github	www.github.com/0xJacky/nginx-ui/security/advisories/GHSA-cf23-7qxj-xmhr
github	www.github.com/0xJacky/nginx-ui/releases/tag/v2.4.1
github	www.github.com/0xJacky/nginx-ui/commit/23d1934099b05b2a01589b48129dc3d3159d91c2

12 Oct 2026 21:06Current

CVSS 3.18.8

EPSS0.00507

SSVC

Nginx UI authenticated directive injection RCE config.ValidateConfigDirectives official image