Missing Authorization

Overview pipecat-ai is an An open source framework for voice and multimodal assistants Affected versions of this package are vulnerable to Missing Authorization via the telephony WebSocket /ws and plain WebSocket /ws-client endpoints, which accepts attacker-controlled handshake messages containin...

undici WebSocket client vulnerable to denial of service via cumulative fragment bypass

Impact The undici WebSocket client enforces maxPayloadSize per-frame but does not enforce the cumulative size of fragmented uncompressed messages. A malicious WebSocket server can stream many small fragments that each pass per-frame validation but collectively exceed the configured limit, causing...

GHSA-38RV-X7PX-6HHQ undici WebSocket client vulnerable to denial of service via cumulative fragment bypass

Impact The undici WebSocket client enforces maxPayloadSize per-frame but does not enforce the cumulative size of fragmented uncompressed messages. A malicious WebSocket server can stream many small fragments that each pass per-frame validation but collectively exceed the configured limit, causing...

EUVD-2026-37752

undici WebSocket client vulnerable to denial of service via cumulative fragment bypass...

NPM: undici WebSocket client vulnerable to denial of service via cumulative fragment bypass

NPM: undici WebSocket client vulnerable to denial of service via cumulative fragment bypass vulnerability discovered by ? in WordPress Npm undici versions = 8.0.0, 8.5.0...

CVE-2026-9675

A flaw was found in undici. A malicious WebSocket server could exploit this vulnerability by sending fragmented messages that individually meet size limits but collectively exceed them. This can lead to unbounded memory growth in the client process, resulting in memory exhaustion and a denial of...

ws: ws: Uninitialized memory disclosure via `websocket.close()` with `TypedArray`

A flaw was found in ws, an open source WebSocket client and server for Node.js. The websocket.close implementation is vulnerable to uninitialized memory disclosure when a TypedArray is passed as the reason argument. This can lead to the disclosure of sensitive information from uninitialized memor...

CVE-2026-12151

A flaw was found in undici. A malicious WebSocket server can exploit this by streaming numerous small or empty continuation frames. This can bypass per-frame and cumulative-size validation, leading to unbounded memory growth in the client process. The primary consequence is memory exhaustion,...

PT-2026-50727

Name of the Vulnerable Software and Affected Versions Pipecat versions prior to 1.4.0 Description The pipecat development runner registers a /ws WebSocket endpoint for telephony testing that accepts connections without authentication. An unauthenticated remote attacker can connect to this endpoin...

Hermes Agent contains a DNS rebinding vulnerability in WebSocket endpoints that allows remote attackers to bypass Host and Origin validation

Hermes Agent before 0.16.0 contains a DNS rebinding vulnerability in WebSocket endpoints that allows remote attackers to bypass Host and Origin validation. FastAPI HTTP middleware does not execute for WebSocket upgrade requests on /api/pty, /api/ws, /api/pub, and /api/events endpoints, enabling...

GHSA-4PQM-J46F-795X Hermes Agent contains a DNS rebinding vulnerability in WebSocket endpoints that allows remote attackers to bypass Host and Origin validation

Hermes Agent before 0.16.0 contains a DNS rebinding vulnerability in WebSocket endpoints that allows remote attackers to bypass Host and Origin validation. FastAPI HTTP middleware does not execute for WebSocket upgrade requests on /api/pty, /api/ws, /api/pub, and /api/events endpoints, enabling...

Missing Authentication for Critical Function

Overview hermes-agent is a The self-improving AI agent — creates skills from experience, improves them during use, and runs anywhere Affected versions of this package are vulnerable to Missing Authentication for Critical Function in the handling of WebSocket upgrade requests on /api/pty, /api/ws,...

CVE-2026-53869

Hermes Agent before 0.16.0 contains a DNS rebinding vulnerability in WebSocket endpoints that allows remote attackers to bypass Host and Origin validation. FastAPI HTTP middleware does not execute for WebSocket upgrade requests on /api/pty, /api/ws, /api/pub, and /api/events endpoints, enabling...

Deno: Denial of service via non-ASCII bytes in WebSocket response headers

Summary A Deno program that opens a client WebSocket connection could be crashed by the remote server. While handling the WebSocket handshake response, Deno parsed the Sec-WebSocket-Protocol and Sec-WebSocket-Extensions response headers in a way that assumed their bytes were always printable ASCI...

Allocation of Resources Without Limits or Throttling

Overview org.webjars.npm:undici is an An HTTP/1.1 client, written from scratch for Node.js Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the handling of WebSocket message fragments. An attacker can cause unbounded memory growth and...

Allocation of Resources Without Limits or Throttling

Overview undici is an An HTTP/1.1 client, written from scratch for Node.js Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the handling of WebSocket message fragments. An attacker can cause unbounded memory growth and exhaust system...

Allocation of Resources Without Limits or Throttling

Overview org.webjars.npm:undici is an An HTTP/1.1 client, written from scratch for Node.js Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the handling of fragmented WebSocket messages. An attacker can cause unbounded memory growth and...

Allocation of Resources Without Limits or Throttling

Overview undici is an An HTTP/1.1 client, written from scratch for Node.js Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the handling of fragmented WebSocket messages. An attacker can cause unbounded memory growth and exhaust system...

NPM: webpack-dev-server vulnerable to HMR WebSocket interception via permissive user proxies

NPM: webpack-dev-server vulnerable to HMR WebSocket interception via permissive user proxies vulnerability discovered by ? in WordPress Npm webpack-dev-server versions 5.2.5...

GHSA-MX8G-39Q3-5C79 webpack-dev-server vulnerable to HMR WebSocket interception via permissive user proxies

Impact When a user-configured proxy on webpack-dev-server has a broad context e.g. / and ws: true, it also intercepts the dev server's own HMR WebSocket and forwards it to the proxy target. This leaks the browser's cookies and Origin header to the backend, bypasses the dev server's Host/Origin...