If are you are using Highlight.js to highlight user-provided data you are possibly vulnerable. On the client-side (in a browser or Electron environment) risks could include lengthy freezes or crashes... On the server-side infinite freezes could occur... effectively preventing users from accessing your app or service (ie, Denial of Service). This is an issue with grammars shipped with the parser (and potentially 3rd party grammars also), not the parser itself. If you are using Highlight.js with any of the following grammars you are vulnerable. If you are using highlightAuto to detect the language (and have any of these grammars registered) you are vulnerable.
WS-2020-0208 - Medium Severity Vulnerability
Vulnerable Library - highlight.js-9.18.5.tgz
Syntax highlighting with language autodetection.
Library home page: https://registry.npmjs.org/highlight.js/-/highlight.js-9.18.5.tgz
Path to dependency file: microdoc/package.json
Path to vulnerable library: microdoc/node_modules/highlight.js/package.json
Dependency Hierarchy: - remarkable-2.0.3.tgz (Root Library) - :x: **highlight.js-9.18.5.tgz** (Vulnerable Library)
Found in HEAD commit: 09e7278e6585f6b54fd8bb4241573cef83362c1c
Found in base branch: master
Vulnerability Details
If are you are using Highlight.js to highlight user-provided data you are possibly vulnerable. On the client-side (in a browser or Electron environment) risks could include lengthy freezes or crashes... On the server-side infinite freezes could occur... effectively preventing users from accessing your app or service (ie, Denial of Service). This is an issue with grammars shipped with the parser (and potentially 3rd party grammars also), not the parser itself. If you are using Highlight.js with any of the following grammars you are vulnerable. If you are using highlightAuto to detect the language (and have any of these grammars registered) you are vulnerable.
Publish Date: 2020-12-04
URL: WS-2020-0208
CVSS 3 Score Details (5.3)
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: Low - Integrity Impact: None - Availability Impact: None
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: https://github.com/highlightjs/highlight.js/tree/10.4.1
Release Date: 2020-12-04
Fix Resolution: 10.4.1
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