## CVE-2021-3803 - Medium Severity Vulnerability

Vulnerable Libraries - nth-check-2.0.0.tgz, nth-check-1.0.2.tgz

nth-check-2.0.0.tgz

Parses and compiles CSS nth-checks to highly optimized functions.

Library home page: https://registry.npmjs.org/nth-check/-/nth-check-2.0.0.tgz

Path to dependency file: at-the-wall/package.json

Path to vulnerable library: at-the-wall/node_modules/nth-check/package.json

Dependency Hierarchy: - cssnano-5.0.8.tgz (Root Library) - cssnano-preset-default-5.1.4.tgz - postcss-svgo-5.0.2.tgz - svgo-2.3.0.tgz - css-select-3.1.2.tgz - :x: **nth-check-2.0.0.tgz** (Vulnerable Library)

nth-check-1.0.2.tgz

performant nth-check parser & compiler

Library home page: https://registry.npmjs.org/nth-check/-/nth-check-1.0.2.tgz

Path to dependency file: at-the-wall/package.json

Path to vulnerable library: at-the-wall/node_modules/nth-check/package.json

Dependency Hierarchy: - critical-4.0.1.tgz (Root Library) - oust-1.2.0.tgz - cheerio-0.22.0.tgz - css-select-1.2.0.tgz - :x: **nth-check-1.0.2.tgz** (Vulnerable Library)

Found in HEAD commit: 54196e2914bbc16296f582bb870eeb083f3ec1d5

Vulnerability Details

nth-check is vulnerable to Inefficient Regular Expression Complexity

Publish Date: 2021-09-17

URL: CVE-2021-3803

CVSS 3 Score Details (5.5)

Base Score Metrics: - Exploitability Metrics: - Attack Vector: N/A - Attack Complexity: N/A - Privileges Required: N/A - User Interaction: N/A - Scope: N/A - Impact Metrics: - Confidentiality Impact: N/A - Integrity Impact: N/A - Availability Impact: N/A

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://github.com/fb55/nth-check/compare/v2.0.0...v2.0.1

Release Date: 2021-09-17

Fix Resolution: nth-check - v2.0.1

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CVE-2021-3803 (Medium) detected in nth-check-2.0.0.tgz, nth-check-1.0.2.tgz #503

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