Merge multiple objects into one, optionally creating a new cloned object. Similar to the jQuery.extend but more flexible. Works in Node.js and the browser.
A Prototype Pollution vulnerability was found in merge before 2.1.0 via the merge.recursive function. It can be tricked into adding or modifying properties of the Object prototype. These properties will be present on all objects.
WS-2020-0218 - High Severity Vulnerability
Vulnerable Library - merge-1.2.1.tgz
Merge multiple objects into one, optionally creating a new cloned object. Similar to the jQuery.extend but more flexible. Works in Node.js and the browser.
Library home page: https://registry.npmjs.org/merge/-/merge-1.2.1.tgz
Path to dependency file: github-action-image-resizer/package.json
Path to vulnerable library: github-action-image-resizer/node_modules/merge/package.json
Dependency Hierarchy: - cz-conventional-changelog-3.3.0.tgz (Root Library) - commitizen-4.2.3.tgz - find-node-modules-2.0.0.tgz - :x: **merge-1.2.1.tgz** (Vulnerable Library)
Found in HEAD commit: 744a9cb4699d25b12f0b880023686689f81d7909
Vulnerability Details
A Prototype Pollution vulnerability was found in merge before 2.1.0 via the merge.recursive function. It can be tricked into adding or modifying properties of the Object prototype. These properties will be present on all objects.
Publish Date: 2020-10-09
URL: WS-2020-0218
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://github.com/yeikos/js.merge/pull/38
Release Date: 2020-10-09
Fix Resolution: merge - 2.1.0
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