The normalize-url package before 4.5.1, 5.x before 5.3.1, and 6.x before 6.0.1 for Node.js has a ReDoS (regular expression denial of service) issue because it has exponential performance for data: URLs.
: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-2021-33502 - High Severity Vulnerability
Vulnerable Library - normalize-url-1.9.1.tgz
Normalize a URL
Library home page: https://registry.npmjs.org/normalize-url/-/normalize-url-1.9.1.tgz
Path to dependency file: /client/package.json
Path to vulnerable library: /client/node_modules/normalize-url/package.json
Dependency Hierarchy: - css-loader-0.28.11.tgz (Root Library) - cssnano-3.10.0.tgz - postcss-normalize-url-3.0.8.tgz - :x: **normalize-url-1.9.1.tgz** (Vulnerable Library)
Found in HEAD commit: 2afe18be24d4f77034e10f011e2885a5f1f53cb9
Found in base branch: master
Vulnerability Details
The normalize-url package before 4.5.1, 5.x before 5.3.1, and 6.x before 6.0.1 for Node.js has a ReDoS (regular expression denial of service) issue because it has exponential performance for data: URLs.
Publish Date: 2021-05-24
URL: CVE-2021-33502
CVSS 3 Score Details (7.5)
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.Suggested Fix
Type: Upgrade version
Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33502
Release Date: 2021-05-24
Fix Resolution (normalize-url): 4.5.1
Direct dependency fix Resolution (css-loader): 1.0.0
:rescue_worker_helmet: Automatic Remediation is available for this issue