## CVE-2021-43138 - High Severity Vulnerability

Vulnerable Libraries - async-2.6.3.tgz, async-3.2.1.tgz

async-2.6.3.tgz

Higher-order functions and common patterns for asynchronous code

Library home page: https://registry.npmjs.org/async/-/async-2.6.3.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/pa11y-ci/node_modules/async/package.json

Dependency Hierarchy: - pa11y-ci-2.4.2.tgz (Root Library) - :x: **async-2.6.3.tgz** (Vulnerable Library)

async-3.2.1.tgz

Higher-order functions and common patterns for asynchronous code

Library home page: https://registry.npmjs.org/async/-/async-3.2.1.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/async/package.json

Dependency Hierarchy: - :x: **async-3.2.1.tgz** (Vulnerable Library)

Found in base branch: main

Vulnerability Details

In Async before 2.6.4 and 3.x before 3.2.2, a malicious user can obtain privileges via the mapValues() method, aka lib/internal/iterator.js createObjectIterator prototype pollution.

Publish Date: 2022-04-06

URL: CVE-2021-43138

CVSS 3 Score Details (7.8)

Base Score Metrics: - Exploitability Metrics: - Attack Vector: Local - Attack Complexity: Low - Privileges Required: None - User Interaction: Required - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: High - Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://nvd.nist.gov/vuln/detail/CVE-2021-43138

Release Date: 2022-04-06

Fix Resolution: 3.2.2

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CVE-2021-43138 (High) detected in async-2.6.3.tgz, async-3.2.1.tgz - autoclosed #383

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