Nginx-UI: Cross-Site WebSocket Hijacking (CSWSH) via missing origin validation on all WebSocket endpoints

Summary All WebSocket endpoints in nginx-ui use a gorilla/websocket Upgrader with CheckOrigin unconditionally returning true, allowing Cross-Site WebSocket Hijacking CSWSH. Combined with the fact that authentication tokens are stored in browser cookies set via JavaScript without HttpOnly or...

EUVD-2026-23972

Nginx-UI: Cross-Site WebSocket Hijacking CSWSH via missing origin validation on all WebSocket endpoints...

CVE-2026-34403

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.5, all WebSocket endpoints in nginx-ui use a gorilla/websocket Upgrader with CheckOrigin unconditionally returning true, allowing Cross-Site WebSocket Hijacking CSWSH. Combined with the fact that authentication tokens...

CVE-2026-34403 Nginx-UI vulnerable to Cross-Site WebSocket Hijacking (CSWSH) via missing origin validation on all WebSocket endpoints

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.5, all WebSocket endpoints in nginx-ui use a gorilla/websocket Upgrader with CheckOrigin unconditionally returning true, allowing Cross-Site WebSocket Hijacking CSWSH. Combined with the fact that authentication tokens...

CVE-2026-34403 Nginx-UI vulnerable to Cross-Site WebSocket Hijacking (CSWSH) via missing origin validation on all WebSocket endpoints

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.5, all WebSocket endpoints in nginx-ui use a gorilla/websocket Upgrader with CheckOrigin unconditionally returning true, allowing Cross-Site WebSocket Hijacking CSWSH. Combined with the fact that authentication tokens...

CVE-2026-34403

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.5, all WebSocket endpoints in nginx-ui use a gorilla/websocket Upgrader with CheckOrigin unconditionally returning true, allowing Cross-Site WebSocket Hijacking CSWSH. Combined with the fact that authentication tokens...

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...

Nginx UI security vulnerabilities

Nginx UI is a web interface for Nginx developed by Jacky. Versions of Nginx UI prior to 2.3.5 contained security vulnerabilities. These vulnerabilities stemmed from WebSocket endpoints that did not validate sources and an insecure storage of authentication tokens, which could lead to cross-site...

CVE-2026-34403: Missing Origin Validation in WebSockets

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.5, all WebSocket endpoints in nginx-ui use a gorilla/websocket Upgrader with CheckOrigin unconditionally returning true, allowing Cross-Site WebSocket Hijacking CSWSH. Combined with the fact that authentication tokens...

CVE-2026-35589 nanobot: Cross-Site WebSocket Hijacking in WhatsApp Bridge (CVE-2026-2577 Fix Update)

nanobot is a personal AI assistant. Versions prior to 0.1.5 contain a Cross-Site WebSocket Hijacking CSWSH vulnerability exists in the bridge's WebSocket server in bridge/src/server.ts, resulting from an incomplete remediation of CVE-2026-2577. The original fix changed the binding from 0.0.0.0 to...

CVE-2026-35589: Missing Origin Validation in WebSockets

nanobot is a personal AI assistant. Versions prior to 0.1.5 contain a Cross-Site WebSocket Hijacking CSWSH vulnerability exists in the bridge's WebSocket server in bridge/src/server.ts, resulting from an incomplete remediation of CVE-2026-2577. The original fix changed the binding from 0.0.0.0 to...

Jenkins CLI Cross-Site WebSocket Hijacking

The vulnerability in the built-in command-line interface CLI of the Jenkins automation server is related to the dependence of critical actions on the reverse DNS solution. Exploiting this vulnerability allows a malicious actor to execute a Cross-Site WebSocket Hijacking attack remotely...

GO-2026-4709 SiYuan Vulnerable to Cross-Origin WebSocket Hijacking via Authentication Bypass — Unauthenticated Information Disclosure in github.com/siyuan-note/siyuan/kernel

SiYuan Vulnerable to Cross-Origin WebSocket Hijacking via Authentication Bypass — Unauthenticated Information Disclosure in github.com/siyuan-note/siyuan/kernel...

PT-2026-30398

Impact The WebSocket upgrade handler in the server validates authentication API key token or session cookie but does not check the Origin header. A malicious webpage on a different origin could initiate a WebSocket connection to ws://localhost:3000/ws if it can leverage the user's session cookie...

CVE-2026-32815

CVE-2026-32815 affects SiYuan Web UI: in versions 3.6.0 and earlier, the WebSocket endpoint /ws can accept unauthenticated connections when URL parameters (?app=siyuan&id=auth&type=auth) are supplied, enabling cross-origin WebSocket connections to receive all server push events and leak metadata ...

PT-2026-33848

Name of the Vulnerable Software and Affected Versions Nginx UI versions prior to 2.3.5 Description All WebSocket endpoints use a gorilla/websocket Upgrader with a configuration that unconditionally accepts all origins, enabling Cross-Site WebSocket Hijacking CSWSH. This is exacerbated by...

TencentOS Server 4: grafana (TSSA-2026:0165)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2026:0165 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:...

Storybook Dev Server is Vulnerable to WebSocket Hijacking

Summary The WebSocket functionality in Storybook's dev server, used to create and update stories, is vulnerable to WebSocket hijacking. This vulnerability only affects the Storybook dev server; production builds are not impacted. Details Exploitation requires a developer to visit a malicious...

GHSA-MJF5-7G4M-GX5W Storybook Dev Server is Vulnerable to WebSocket Hijacking

Summary The WebSocket functionality in Storybook's dev server, used to create and update stories, is vulnerable to WebSocket hijacking. This vulnerability only affects the Storybook dev server; production builds are not impacted. Details Exploitation requires a developer to visit a malicious...

CVE-2026-27148

Storybook is a frontend workshop for building user interface components and pages in isolation. Prior to versions 7.6.23, 8.6.17, 9.1.19, and 10.2.10, the WebSocket functionality in Storybook's dev server, used to create and update stories, is vulnerable to WebSocket hijacking. This vulnerability...