CVE-2021-21419

MediumCVSS 5.3/10Last modified Jun 17, 2026

Description

Eventlet is a concurrent networking library for Python. A websocket peer may exhaust memory on Eventlet side by sending very large websocket frames. Malicious peer may exhaust memory on Eventlet side by sending highly compressed data frame. A patch in version 0.31.0 restricts websocket frame to reasonable limits. As a workaround, restricting memory usage via OS limits would help against overall machine exhaustion, but there is no workaround to protect Eventlet process.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weakness enumeration

CWE-400

Affected software

No affected versions have been published.

Timeline

Published: May 7, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-21426.1Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Console). The supported version that is affected CVE-2021-214207.8vscode-stripe is an extension for Visual Studio Code. A vulnerability in Stripe for Visual Studio Code extension exists when it loads an unt CVE-2021-214216.5node-etsy-client is a NodeJs Etsy ReST API Client. Applications that are using node-etsy-client and reporting client error to the end user w CVE-2021-214226.1mongo-express is a web-based MongoDB admin interface, written with Node.js and express. 1: As mentioned in this issue: https://github.com/mo CVE-2021-214238.1`projen` is a project generation tool that synthesizes project configuration files such as `package.json`, `tsconfig.json`, `.gitignore`, Gi CVE-2021-214245.3Symfony is a PHP framework for web and console applications and a set of reusable PHP components. The ability to enumerate users was possibl CVE-2021-214259.8Grav Admin Plugin is an HTML user interface that provides a way to configure Grav and create and modify pages. In versions 1.10.7 and earlie CVE-2021-214269.8Magento-lts is a long-term support alternative to Magento Community Edition (CE). In magento-lts versions 19.4.12 and prior and 20.0.8 and p CVE-2021-214277.2Magento-lts is a long-term support alternative to Magento Community Edition (CE). A vulnerability in magento-lts versions before 19.4.13 and CVE-2021-214287.0Openapi generator is a java tool which allows generation of API client libraries (SDK generation), server stubs, documentation and configura CVE-2021-214293.3OpenAPI Generator allows generation of API client libraries, server stubs, documentation and configuration automatically given an OpenAPI Sp CVE-2021-214305.5OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically gi