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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 significantly slow down a ws server. The vulnerability has been fixed in ws@7.4.6 (websockets/ws@00c425e). In vulnerable versions of ws, the issue can be mitigated by reducing the maximum allowed length of the request headers using the --max-http-header-size=size and/or the maxHeaderSize options.
✔️ This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.
mend-bolt-for-githubbot
changed the title
CVE-2021-32640 (Medium) detected in ws-7.3.1.tgz
CVE-2021-32640 (Medium) detected in ws-7.3.1.tgz - autoclosed
May 30, 2022
mend-bolt-for-githubbot
changed the title
CVE-2021-32640 (Medium) detected in ws-7.3.1.tgz - autoclosed
CVE-2021-32640 (Medium) detected in ws-7.3.1.tgz
Jan 6, 2023
CVE-2021-32640 - Medium Severity Vulnerability
Vulnerable Library - ws-7.3.1.tgz
Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js
Library home page: https://registry.npmjs.org/ws/-/ws-7.3.1.tgz
Path to dependency file: /package.json
Path to vulnerable library: /node_modules/ws/package.json
Dependency Hierarchy:
Found in HEAD commit: 74d8cca7d8be1ba7b753af0545822d0b741466b7
Found in base branch: master
Vulnerability Details
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 significantly slow down a ws server. The vulnerability has been fixed in ws@7.4.6 (websockets/ws@00c425e). In vulnerable versions of ws, the issue can be mitigated by reducing the maximum allowed length of the request headers using the--max-http-header-size=size
and/or themaxHeaderSize
options.Publish Date: 2021-05-25
URL: CVE-2021-32640
CVSS 3 Score Details (5.3)
Base Score Metrics:
Suggested Fix
Type: Upgrade version
Origin: GHSA-6fc8-4gx4-v693
Release Date: 2021-05-25
Fix Resolution (ws): 7.4.6
Direct dependency fix Resolution (jest): 26.4.0
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