CVE-2026-84313High· 8.8▾ MidnightPoC available

Nginx UI is a web user interface for the Nginx web server

▾ Midnight zone — Critical, or high with PoC / in-the-wild

Depth score61/ 100 · Elevated

impact 48.4 · likelihood 0.1 · exploitation 12

⚡ Agent-ready:Raw markdown ↗JSON ↗

Proof of concept

A public proof-of-concept already exists for this vulnerability — see Exploit availability below.

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Published

Oct 12, 2026

Updated

Oct 15, 2026

CVSS

8.8

Vendor

0xJacky

Product

nginx-ui

CWE

CWE-287, CWE-306

Depth score

61 · Elevated

EPSS

0.54% · p45

Platforms

—

Source

NVD

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

decided 2026-10-15

Exploitation: poc
Automatable: no
Technical impact: total

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.

EPSS history

Exploit-prediction probability, daily snapshots since Oct 13.

0.4% → 0.5%▲ 0.1%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

5 events · 14 days

Oct 12, 2026Published
Disclosed via NVD
Oct 13, 2026EPSS first tracked
0.4%
Oct 15, 2026Record revised
Last analysed / modified upstream
Oct 15, 2026Public exploit observed
Exploit / PoC code exists
Oct 26, 2026EPSS peak
0.4% → 0.5%

0xJacky CWE-287 CWE-306 #nvd #cve.org #exploit-available #ghsa #go #osv

Affected

nginx-ui < 2.4.1

Patched in

Nginx-UI 1.9.10-0.20260703131214-23d1934099b0

Full technical detail▾

Overview

Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, POST /api/otp_enroll and POST /api/finish_passkey_register are registered outside RequireSecureSession and accept a normal authenticated session without verifying the current password. An attacker with a stolen JWT can bind an attacker-controlled TOTP secret when the victim has not already enabled TOTP, or can register an attacker-controlled passkey because that path has no equivalent existing-enrollment guard. These changes create persistent account access that can survive a password change and interfere with the legitimate user's authentication. This issue is fixed in version 2.4.1.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

Package advisory (CVE-2026-84313)

Affected packages:

Nginx-UI < 1.9.10-0.20260703131214-23d1934099b0

Patched in:

Nginx-UI 1.9.10-0.20260703131214-23d1934099b0

Source: https://github.com/advisories/GHSA-gfrc-g87h-7h5w

References

Change history

Field changes observed since this record was first indexed.

Oct 15, 2026Public exploit / PoC published

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#cve.org#exploit-available#ghsa#go#osv

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