The css-what package 4.0.0 through 5.0.0 for Node.js does not ensure that attribute parsing has Linear Time Complexity relative to the size of the input.
:heavy_check_mark: 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.
CVE-2021-33587 - High Severity Vulnerability
a CSS selector parser
Library home page: https://registry.npmjs.org/css-what/-/css-what-3.2.1.tgz
Path to dependency file: /package.json
Path to vulnerable library: /node_modules/css-what/package.json
Dependency Hierarchy: - react-scripts-3.4.0.tgz (Root Library) - webpack-4.3.3.tgz - plugin-svgo-4.3.1.tgz - svgo-1.3.2.tgz - css-select-2.1.0.tgz - :x: **css-what-3.2.1.tgz** (Vulnerable Library)
Found in HEAD commit: 340e24f4064182631ba657b42580dbb0476e3b94
Found in base branch: master
The css-what package 4.0.0 through 5.0.0 for Node.js does not ensure that attribute parsing has Linear Time Complexity relative to the size of the input.
Publish Date: 2021-05-28
URL: CVE-2021-33587
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33587
Release Date: 2021-05-28
Fix Resolution (css-what): 5.0.1
Direct dependency fix Resolution (react-scripts): 5.0.1