Is this vulnerability remotely exploitable?

Yes. If the Nginx UI instance in version 2.3.5 is reachable over the network during its installation window, a remote attacker can exploit the unauthenticated `/api/install` endpoint without local access.

Does an attacker need valid credentials or an existing account?

No. The issue arises specifically because the installation endpoint does not enforce authentication, allowing a client with only network reachability to perform privileged bootstrap actions.

What is the safest general fix pattern?

The safest pattern is to require strong authentication for all critical functions, including installation and bootstrap flows, and to ensure these workflows cannot be invoked by arbitrary unauthenticated users once the service is exposed.

Severity:

HIGH RISK

(8.1)

Unauthenticated Installation Bootstrap Takeover (CWE-306) in Nginx UI

CVE-2026-42222

Published:

May 4, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-918

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

Unauthorized Access to Internal Resources via SSRF

May 6, 2026

CWE-863

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Privilege Escalation via Bypassed Access Control

May 6, 2026

Vulnerability Type

Category:

Broken / Missing Authentication on Critical Functionality

CWE:

CWE-284;CWE-306

Impact:

Administrative Account Takeover and Configuration Control

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

Vulnerability Type

Category:

Broken / Missing Authentication on Critical Functionality

CWE:

CWE-284;CWE-306

Impact:

Administrative Account Takeover and Configuration Control

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

Detect vulnerable code directly in pull requests, so CVEs are fixed before merge.

Get Started

Ship clean & secure code faster

Start Free Trial

Get Pentest Report

Ship clean & secure code faster

Start Free Trial

Get Pentest Report

Ship clean & secure code faster

Start Free Trial

Get Pentest Report

CodeAnt AI is an offensive and defensive security platform.

Defensive + offensive security.

From first line of code to a pentest
that knows every line of it.

SOC 2 Type II certified | CodeAnt AI is independently audited and compliant with SOC 2 Type II security standards

Ask AI for summary of CodeAnt

Defensive + offensive security.

From first line of code to a pentest
that knows every line of it.

Ask AI for summary of CodeAnt

Defensive + offensive security.

From first line of code to a pentest
that knows every line of it.

Ask AI for summary of CodeAnt

Unauthenticated Installation Bootstrap Takeover (CWE-306) in Nginx UI

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

Product

Compare

Company

Developers

Legal

Product

Compare

Company

Developers

Legal

Product

Compare

Company

Developers

Legal