ws: ws: Denial of Service via memory exhaustion from small WebSocket fragments

A flaw was found in ws, an open source WebSocket client and server. A remote attacker can exploit this memory exhaustion vulnerability by sending a high volume of exceptionally small fragments and data chunks. This action forces the affected component to allocate and hold structural wrappers that...

CVE-2026-48779

ws is an open source WebSocket client and server for Node.js. All versions from 1.1.0 up to but not including 5.2.5, from 6.0.0 up to 6.2.4, from 7.0.0 up to 7.5.11, and from 8.0.0 up to 8.21.0 are affected by a memory exhaustion DoS vulnerability. A peer can send a high volume of exceptionally...

DEBIAN-CVE-2026-48779

ws is an open source WebSocket client and server for Node.js. All versions from 1.1.0 up to but not including 5.2.5, from 6.0.0 up to 6.2.4, from 7.0.0 up to 7.5.11, and from 8.0.0 up to 8.21.0 are affected by a memory exhaustion DoS vulnerability. A peer can send a high volume of exceptionally...

CVE-2026-48779 ws: Memory exhaustion DoS from tiny fragments and data chunks

ws is an open source WebSocket client and server for Node.js. All versions from 1.1.0 up to but not including 5.2.5, from 6.0.0 up to 6.2.4, from 7.0.0 up to 7.5.11, and from 8.0.0 up to 8.21.0 are affected by a memory exhaustion DoS vulnerability. A peer can send a high volume of exceptionally...

CVE-2026-48779

ws is an open source WebSocket client and server for Node.js. All versions from 1.1.0 up to but not including 5.2.5, from 6.0.0 up to 6.2.4, from 7.0.0 up to 7.5.11, and from 8.0.0 up to 8.21.0 are affected by a memory exhaustion DoS vulnerability. A peer can send a high volume of exceptionally...

EUVD-2026-37504

ws is an open source WebSocket client and server for Node.js. All versions from 1.1.0 up to but not including 5.2.5, from 6.0.0 up to 6.2.4, from 7.0.0 up to 7.5.11, and from 8.0.0 up to 8.21.0 are affected by a memory exhaustion DoS vulnerability. A peer can send a high volume of exceptionally...

NPM: ws: Memory exhaustion DoS from tiny fragments and data chunks

NPM: ws: Memory exhaustion DoS from tiny fragments and data chunks vulnerability discovered by ? in WordPress Npm ws versions = 1.1.0, 5.2.5...

Asymmetric Resource Consumption (Amplification)

Overview ws is a simple to use websocket client, server and console for node.js. Affected versions of this package are vulnerable to Asymmetric Resource Consumption Amplification when handling a large number of very small fragments and data chunks. An attacker can cause excessive memory allocatio...

UBUNTU-CVE-2026-45736

ws is an open source WebSocket client and server for Node.js. Prior to 8.20.1, the websocket.close implementation is vulnerable to uninitialized memory disclosure when a TypedArray is passed as the reason argument. This vulnerability is fixed in 8.20.1...

CVE-2026-45736 ws: Uninitialized memory disclosure

ws is an open source WebSocket client and server for Node.js. Prior to 8.20.1, the websocket.close implementation is vulnerable to uninitialized memory disclosure when a TypedArray is passed as the reason argument. This vulnerability is fixed in 8.20.1...

UBUNTU-CVE-2026-42498

Exposure of HTTP Authentication Header to unexpected hosts during WebSocket authentication vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.2 through 9.0.117, from 8.5.24 through 8.5.100, from 7.0.83 through...

Use of Uninitialized Resource

Overview org.webjars.npm:ws is a simple to use websocket client, server and console for node.js. Affected versions of this package are vulnerable to Use of Uninitialized Resource in the websocket.close implementation in the Sender class, which exposes uninitialized memory when a TypedArray is...

Tsundere Botnet Expands Using Game Lures and Ethereum-Based C2 on Windows

Cybersecurity researchers have warned of an actively expanding botnet dubbed Tsundere that's targeting Windows users. Active since mid-2025, the threat is designed to execute arbitrary JavaScript code retrieved from a command-and-control C2 server, Kaspersky researcher Lisandro Ubiedo said in an...

EUVD-2018-0216

Malware in sbrugna...

EUVD-2022-6611

Malicious code in bioql PyPI...

Linux Distros Unpatched Vulnerability : CVE-2021-32640

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ws is an open source WebSocket client and server library for Node.js. A specially crafted value of the Sec-Websocket-Protocol header can be used to significantl...

[SECURITY] Fedora 42 Update: lua-http-0.3-17.fc42

lua-http is an efficient, capable HTTP and WebSocket library for Lua...

RTI Connext Professional 安全漏洞

RTI Connext Professional is a connectivity platform designed to meet the demanding requirements of the Industrial Internet of Things IIoT from RTI USA. ws is a Node.js WebSocket library from WebSockets Open Source. A security vulnerability exists in RTI Connext Professional that stems from the...

UBUNTU-CVE-2024-37890

ws is an open source WebSocket client and server for Node.js. A request with a number of headers exceeding theserver.maxHeadersCount threshold could be used to crash a ws server. The vulnerability was fixed in [email protected] e55e510 and backported to [email protected] 22c2876, [email protected] eeb76d3, and [email protected]...

ws security breach

ws is a Node.js WebSocket library in the WebSockets open source. A security vulnerability exists in ws, which stems from a vulnerability that could cause the server to crash if the number of requested headers exceeds a threshold...