undici: Undici: Denial of Service via invalid WebSocket permessage-deflate extension parameter

A flaw was found in the undici WebSocket client. A remote malicious server can exploit this vulnerability by sending a WebSocket frame with an invalid servermaxwindowbits parameter within the permessage-deflate extension. This improper validation causes the client's Node.js process to terminate,...

Important: Red Hat Security Advisory: nodejs:24 security update

An update for the nodejs:24 module is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

undici: undici: Denial of Service via unbounded memory consumption during WebSocket permessage-deflate decompression

A flaw was found in undici. A remote attacker can exploit this vulnerability by sending a specially crafted compressed frame, known as a "decompression bomb," during permessage-deflate decompression. The undici WebSocket client does not properly limit the size of decompressed data, leading to...

CVE-2026-35523

Strawberry GraphQL is a library for creating GraphQL APIs. Strawberry up until version 0.312.3 is vulnerable to an authentication bypass on WebSocket subscription endpoints. The legacy graphql-ws subprotocol handler does not verify that a connectioninit handshake has been completed before...

CVE-2026-39987

marimo is a reactive Python notebook. Prior to 0.23.0, Marimo has a Pre-Auth RCE vulnerability. The terminal WebSocket endpoint /terminal/ws lacks authentication validation, allowing an unauthenticated attacker to obtain a full PTY shell and execute arbitrary system commands. Unlike other WebSock...

RLSA-2026:7302 Important: nodejs:22 security update

Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. Security Fixes: brace-expansion: brace-expansion: Denial of Service via unbounded brace range expansion CVE-2026-25547 minimatch: minimatch: Denial of Service via...

GHSA-5H3F-885M-V22W OpenClaw: Existing WS sessions survive shared gateway token rotation

Impact Existing WS sessions survive shared gateway token rotation. Rotating the shared gateway token did not disconnect existing shared-token WebSocket sessions. OpenClaw is a user-controlled local assistant. This advisory is scoped to the OpenClaw trust model and does not assume a multi-tenant...

OpenClaw: Existing WS sessions survive shared gateway token rotation

Impact Existing WS sessions survive shared gateway token rotation. Rotating the shared gateway token did not disconnect existing shared-token WebSocket sessions. OpenClaw is a user-controlled local assistant. This advisory is scoped to the OpenClaw trust model and does not assume a multi-tenant...

Insufficient Session Expiration

Overview openclaw is a 🦞 OpenClaw — Personal AI Assistant Affected versions of this package are vulnerable to Insufficient Session Expiration due to the failure to terminate existing WebSocket sessions upon shared gateway token rotation. An attacker can maintain unauthorized access to an active...

CVE-2026-39987 marimo Affected by Pre-Auth Remote Code Execution via Terminal WebSocket Authentication Bypass

marimo is a reactive Python notebook. Prior to 0.23.0, Marimo has a Pre-Auth RCE vulnerability. The terminal WebSocket endpoint /terminal/ws lacks authentication validation, allowing an unauthenticated attacker to obtain a full PTY shell and execute arbitrary system commands. Unlike other WebSock...

CVE-2026-39987

CVE-2026-39987 — Marimo WebSocket terminal endpoint unauthenticated pre-auth RCE. The vulnerability resides in the terminal WebSocket at /terminal/ws, which accepts connections without authenticating, unlike the /ws endpoint that invokes validate_auth(). An unauthenticated client can obtain a ful...

CVE-2026-39987 marimo Affected by Pre-Auth Remote Code Execution via Terminal WebSocket Authentication Bypass

marimo is a reactive Python notebook. Prior to 0.23.0, Marimo has a Pre-Auth RCE vulnerability. The terminal WebSocket endpoint /terminal/ws lacks authentication validation, allowing an unauthenticated attacker to obtain a full PTY shell and execute arbitrary system commands. Unlike other WebSock...

CVE-2026-39987

marimo is a reactive Python notebook. Prior to 0.23.0, Marimo has a Pre-Auth RCE vulnerability. The terminal WebSocket endpoint /terminal/ws lacks authentication validation, allowing an unauthenticated attacker to obtain a full PTY shell and execute arbitrary system commands. Unlike other WebSock...

EUVD-2026-20980

marimo is a reactive Python notebook. Prior to 0.23.0, Marimo has a Pre-Auth RCE vulnerability. The terminal WebSocket endpoint /terminal/ws lacks authentication validation, allowing an unauthenticated attacker to obtain a full PTY shell and execute arbitrary system commands. Unlike other WebSock...

CVE-2026-39987 marimo Affected by Pre-Auth Remote Code Execution via Terminal WebSocket Authentication Bypass

marimo is a reactive Python notebook. Prior to 0.23.0, Marimo has a Pre-Auth RCE vulnerability. The terminal WebSocket endpoint /terminal/ws lacks authentication validation, allowing an unauthenticated attacker to obtain a full PTY shell and execute arbitrary system commands. Unlike other WebSock...

undici: Undici: Denial of Service via invalid WebSocket permessage-deflate extension parameter

A flaw was found in the undici WebSocket client. A remote malicious server can exploit this vulnerability by sending a WebSocket frame with an invalid servermaxwindowbits parameter within the permessage-deflate extension. This improper validation causes the client's Node.js process to terminate,...

undici: undici: Denial of Service via crafted WebSocket frame with large length

A flaw was found in undici. A remote attacker could exploit this vulnerability by sending a specially crafted WebSocket frame with an extremely large 64-bit length. This causes undici's ByteParser to overflow its internal calculations, leading to an invalid state and a fatal TypeError. The primar...

undici: undici: Denial of Service via unbounded memory consumption during WebSocket permessage-deflate decompression

A flaw was found in undici. A remote attacker can exploit this vulnerability by sending a specially crafted compressed frame, known as a "decompression bomb," during permessage-deflate decompression. The undici WebSocket client does not properly limit the size of decompressed data, leading to...

Important: Red Hat Security Advisory: nodejs:22 security update

An update for the nodejs:22 module is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

undici: undici: Denial of Service via crafted WebSocket frame with large length

A flaw was found in undici. A remote attacker could exploit this vulnerability by sending a specially crafted WebSocket frame with an extremely large 64-bit length. This causes undici's ByteParser to overflow its internal calculations, leading to an invalid state and a fatal TypeError. The primar...