Exploit for Missing Authentication for Critical Function in Nginxui Nginx_Ui

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CVE-2026-42222

Nginx UI is a web user interface for the Nginx web server. In version 2.3.5, an unauthenticated bootstrap takeover exists in nginx-ui during the initial installation window exposed by POST /api/install. At time of publication no public patches are available...

Nginx-UI: Unauthenticated First-Run Installer Allows Remote Initial Admin Claim

Summary An unauthenticated network attacker can claim the initial administrator account on a fresh nginx-ui instance during the first-run setup window. The public /api/install endpoint is reachable without authentication, and the request-encryption flow only protects payload confidentiality in...

CVE-2026-42220

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.8, an authenticated user can call GET /api/settings and retrieve sensitive configuration values, including node.secret. The same node.secret is accepted by AuthRequired through the X-Node-Secret header or nodesecret...

GHSA-7JRR-XW9C-MJ39 Nginx-UI: Authenticated settings disclosure exposes node.secret and enables trusted-node authentication abuse, backup exfiltration, and restore-based nginx-ui state rollback

Summary An authenticated user can call GET /api/settings and retrieve sensitive configuration values, including node.secret. The same node.secret is accepted by AuthRequired through the X-Node-Secret header or nodesecret query parameter, causing the request to be treated as authenticated via the...

CVE-2026-42223

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.8, the GetSettings API handler api/settings/settings.go:24-65 serializes all settings structs to JSON and returns them to authenticated users. Many sensitive fields are tagged with protected:"true" - however, this tag...

CVE-2026-42223

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.8, the GetSettings API handler api/settings/settings.go:24-65 serializes all settings structs to JSON and returns them to authenticated users. Many sensitive fields are tagged with protected:"true" - however, this tag...

CVE-2026-42222 nginx-ui: Unauthenticated first-boot instance claim via POST /api/install allows remote bootstrap takeover

Nginx UI is a web user interface for the Nginx web server. In version 2.3.5, an unauthenticated bootstrap takeover exists in nginx-ui during the initial installation window exposed by POST /api/install. At time of publication no public patches are available...

CVE-2026-42222 nginx-ui: Unauthenticated first-boot instance claim via POST /api/install allows remote bootstrap takeover

Nginx UI is a web user interface for the Nginx web server. In version 2.3.5, an unauthenticated bootstrap takeover exists in nginx-ui during the initial installation window exposed by POST /api/install. At time of publication no public patches are available...

CVE-2026-42221

Nginx UI is a web user interface for the Nginx web server. From version 2.0.0 to before version 2.3.8, an unauthenticated network attacker can claim the initial administrator account on a fresh nginx-ui instance during the first-run setup window. The public /api/install endpoint is reachable...

CVE-2026-42221 nginx-ui: Unauthenticated First-Run Installer Allows Remote Initial Admin Claim

Nginx UI is a web user interface for the Nginx web server. From version 2.0.0 to before version 2.3.8, an unauthenticated network attacker can claim the initial administrator account on a fresh nginx-ui instance during the first-run setup window. The public /api/install endpoint is reachable...

Nginx UI 访问控制错误漏洞

Nginx UI is a web interface for Nginx developed by Jacky. Version 2.3.5 of Nginx UI contains an access control vulnerability, which stems from unauthenticated privilege escalation during the initial installation process via the POST /api/install endpoint...

Nginx UI 信息泄露漏洞

Nginx UI is a web interface for Nginx developed by Jacky. Versions of Nginx UI prior to 2.3.8 had a vulnerability related to information leakage. This vulnerability stemmed from the ability for authenticated users to call the GET /api/settings request to retrieve sensitive configuration values,...

Nginx-UI: Disabled users retain full API access through previously issued bearer tokens

Summary A user who was disabled by an administrator can use previously issued API tokens for up to the token lifetime. In practice, disabling a compromised account does not actually terminate that user’s access, so an attacker who already stole a JWT can continue reading and modifying protected...

CVE-2026-34403

CVE-2026-34403 : Nginx-UI before 2.3.5 suffers Cross‑Site WebSocket Hijacking (CSWSH) due to an unsafe WebSocket upgrader that unconditionally sets CheckOrigin to true across all endpoints, enabling authenticated WebSocket connections from attacker‑controlled pages. Token authentication is stored...

CVE-2026-33031 Nginx-UI: Disabled users retain full API access through previously issued bearer tokens

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.4, a user who was disabled by an administrator can use previously issued API tokens for up to the token lifetime. In practice, disabling a compromised account does not actually terminate that user’s access, so an...

GO-2026-4907 Nginx Configuration Directory Vulnerable to Recursive Deletion via Improper Path Validation in github.com/0xJacky/Nginx-UI

Nginx Configuration Directory Vulnerable to Recursive Deletion via Improper Path Validation in github.com/0xJacky/Nginx-UI...

GO-2026-4901 nginx-UI has Unencrypted Storage of DNS API Tokens and ACME Private Keys in github.com/0xJacky/nginx-ui

nginx-UI has Unencrypted Storage of DNS API Tokens and ACME Private Keys in github.com/0xJacky/nginx-ui...

CVE-2026-33032

Nginx UI is a web user interface for the Nginx web server. In versions 2.3.5 and prior, the nginx-ui MCP Model Context Protocol integration exposes two HTTP endpoints: /mcp and /mcpmessage. While /mcp requires both IP whitelisting and authentication AuthRequired middleware, the /mcpmessage endpoi...

CVE-2026-33028 Nginx UI: Race Condition Leads to Persistent Data Corruption and Service Collapse

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.4, the nginx-ui application is vulnerable to a Race Condition. Due to the complete absence of synchronization mechanisms Mutex and non-atomic file writes, concurrent requests lead to the severe corruption of the prima...