CVE-2026-39987_exploit

🔥 CVE-2026-39987 | Marimo Pre-Auth RCE Exploit Exploitation Framework | Full Remote Code Execution RCE | WebSocket Auth Bypass 🧠 To know the commands more Open the file website.html 🎯 Overview This exploit targets Marimo applications running WebSocket on port 2718 default. The vulnerability allow...

CVE-2026-114135 Jupyter Server: Gateway WebSocket handler bypasses kernel execute authorization

Jupyter Server is the backend for Jupyter web applications. From 2.0.0 until 2.6.0, enabling GatewayClient.url replaced the normal KernelWebsocketHandler with WebSocketChannelsHandler, which authenticated the user but did not call authorizer.isauthorized... for the execute action on the kernels...

CVE-2026-114135

Jupyter Server (versions 2.0.0 through 2.6.0) is vulnerable to an authorization bypass when GatewayClient.url is enabled. The WebSocketChannelsHandler fails to call authorizer.is_authorized(...) for the execute action on the kernels resource, allowing a restricted authenticated user to open an up...

CVE-2026-114135 Jupyter Server: Gateway WebSocket handler bypasses kernel execute authorization

Jupyter Server is the backend for Jupyter web applications. From 2.0.0 until 2.6.0, enabling GatewayClient.url replaced the normal KernelWebsocketHandler with WebSocketChannelsHandler, which authenticated the user but did not call authorizer.isauthorized... for the execute action on the kernels...

Vitest: Code injection via unauthenticated manual mock registration

Summary @vitest/mocker's interceptorPlugin accepts mock registrations on Vite's dev-server WebSocket with no authentication, and interpolates the mock's url into generated module source without escaping. A client that can reach the dev server can make it serve arbitrary JavaScript in place of any...

EUVD-2026-105148

Vitest: Code injection via unauthenticated manual mock registration...

GHSA-3X84-QQ85-FJ65 OpenClaw: Browser CDP discovery could accept blocked WebSocket URLs

Summary Browser CDP discovery could accept blocked WebSocket URLs. In affected versions, a lower-trust caller or configured input path could reach network destinations that should have been blocked by OpenClaw policy. This advisory is scoped to the named feature and configuration. It does not...

EUVD-2026-43537

OpenClaw: Browser CDP discovery could accept blocked WebSocket URLs...

OpenClaw: Browser CDP discovery could accept blocked WebSocket URLs

Summary Browser CDP discovery could accept blocked WebSocket URLs. In affected versions, a lower-trust caller or configured input path could reach network destinations that should have been blocked by OpenClaw policy. This advisory is scoped to the named feature and configuration. It does not...

npm: OpenClaw: Browser CDP discovery could accept blocked WebSocket URLs

npm: OpenClaw: Browser CDP discovery could accept blocked WebSocket URLs vulnerability discovered by ? in WordPress npm openclaw versions 2026.6.6...

CVE-2026-114126

A flaw was found in Storybook, which may lead to arbitrary code execution. The development server exposes its WebSocket authentication token to clients loading its web pages across a local area network LAN. An attacker on the local network can capture this token and abuse file-writing functionali...

CVE-2026-114126

Storybook is a frontend workshop for building user interface components and pages in isolation. From 8.0.0 until 8.6.19, 9.1.21, 10.6.2, and 11.0.0-alpha.6, the Storybook development server can expose its WebSocket authentication token to clients able to load its HTML pages over a local network. ...

CVE-2026-105927

The Apache Pulsar WebSocket service allows a WebSocket consumer to configure a dead letter policy through query parameters of the consumer endpoint, including the deadLetterTopic parameter that names the topic to which messages are written after the maximum number of redeliveries is exceeded. Whe...

EUVD-2026-107426

The Apache Pulsar WebSocket service allows a WebSocket consumer to configure a dead letter policy through query parameters of the consumer endpoint, including the deadLetterTopic parameter that names the topic to which messages are written after the maximum number of redeliveries is exceeded. Whe...

CVE-2026-105927

The Apache Pulsar WebSocket service (versions 2.3.0 before 4.0.14 and 4.1.0 before 4.2.5) contains an improper authorization vulnerability. An authenticated user with CONSUME permissions on a subscribed topic can exploit the deadLetterTopic query parameter to inject messages into arbitrary topics...

CVE-2026-105869

Apache Pulsar's MultiRolesTokenAuthorizationProvider contains a vulnerability where it fails to verify the signature of JSON Web Tokens (JWT) during authorization. When anonymousUserRole is set to a non-empty value and strictAuthMethod is false (default), requests with failed credentials may fall...

CVE-2026-114126 Storybook dev server: devices on the same network can obtain the WebSocket token and write code into story files

Storybook is a frontend workshop for building user interface components and pages in isolation. From 8.0.0 until 8.6.19, 9.1.21, 10.6.2, and 11.0.0-alpha.6, the Storybook development server can expose its WebSocket authentication token to clients able to load its HTML pages over a local network. ...

CVE-2026-114126 Storybook dev server: devices on the same network can obtain the WebSocket token and write code into story files

Storybook is a frontend workshop for building user interface components and pages in isolation. From 8.0.0 until 8.6.19, 9.1.21, 10.6.2, and 11.0.0-alpha.6, the Storybook development server can expose its WebSocket authentication token to clients able to load its HTML pages over a local network. ...

CVE-2026-114126

The Storybook development server is vulnerable to a security flaw where it exposes its WebSocket authentication token to clients on the local network. Affected versions include 8.0.0 to 8.6.18 , 9.1.21 , 10.6.2 , and 11.0.0-alpha.6 . A LAN attacker can obtain this token to access WebSocket-backed...

verify-ghsa-c4j6-fc7j-m34r

verify-ghsa-c4j6-fc7j-m34r In-band verifier for GHSA-c4j6-fc7j-m34r / CVE-2026-44578 — Server-Side Request Forgery in Next.js via WebSocket upgrade requests. ⚠️ For authorized security testing only. You are responsible for ensuring you have permission to test every target you pass to this script...