node-fetch before versions 2.6.1 and 3.0.0-beta.9 did not honor the size option after following a redirect, which means that when a content size was over the limit, a FetchError would never get thrown and the process would end without failure. For most people, this fix will have a little or no impact. However, if you are relying on node-fetch to gate files above a size, the impact could be significant, for example: If you don't double-check the size of the data after fetch() has completed, your JS thread could get tied up doing work on a large file (DoS) and/or cost you money in computing.
CVE-2020-15168 - Medium Severity Vulnerability
A light-weight module that brings window.fetch to node.js
Library home page: https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.0.tgz
Path to dependency file: /package.json
Path to vulnerable library: /node_modules/node-fetch/package.json
Dependency Hierarchy: - blockstack-21.0.0.tgz (Root Library) - cross-fetch-3.0.4.tgz - :x: **node-fetch-2.6.0.tgz** (Vulnerable Library)
Found in base branch: master
node-fetch before versions 2.6.1 and 3.0.0-beta.9 did not honor the size option after following a redirect, which means that when a content size was over the limit, a FetchError would never get thrown and the process would end without failure. For most people, this fix will have a little or no impact. However, if you are relying on node-fetch to gate files above a size, the impact could be significant, for example: If you don't double-check the size of the data after fetch() has completed, your JS thread could get tied up doing work on a large file (DoS) and/or cost you money in computing.
Publish Date: 2020-09-10
URL: CVE-2020-15168
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: Low
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://github.com/node-fetch/node-fetch/security/advisories/GHSA-w7rc-rwvf-8q5r
Release Date: 2020-09-17
Fix Resolution (node-fetch): 2.6.1
Direct dependency fix Resolution (blockstack): 21.1.0
Step up your Open Source Security Game with Mend here