Prism is a syntax highlighting library. Some languages before 1.24.0 are vulnerable to Regular Expression Denial of Service (ReDoS). When Prism is used to highlight untrusted (user-given) text, an attacker can craft a string that will take a very very long time to highlight. This problem has been fixed in Prism v1.24. As a workaround, do not use ASCIIDoc or ERB to highlight untrusted text. Other languages are not affected and can be used to highlight untrusted text.
CVE-2021-32723 - Medium Severity Vulnerability
Lightweight, robust, elegant syntax highlighting. A spin-off project from Dabblet.
Library home page: https://registry.npmjs.org/prismjs/-/prismjs-1.17.1.tgz
Path to dependency file: /package.json
Path to vulnerable library: /node_modules/prismjs/package.json
Dependency Hierarchy: - storybook-state-2.0.1.tgz (Root Library) - components-5.3.6.tgz - react-syntax-highlighter-11.0.2.tgz - :x: **prismjs-1.17.1.tgz** (Vulnerable Library)
Found in HEAD commit: 4fc776e2b95c8b497f6994cb2165365562ae1f82
Found in base branch: master
Prism is a syntax highlighting library. Some languages before 1.24.0 are vulnerable to Regular Expression Denial of Service (ReDoS). When Prism is used to highlight untrusted (user-given) text, an attacker can craft a string that will take a very very long time to highlight. This problem has been fixed in Prism v1.24. As a workaround, do not use ASCIIDoc or ERB to highlight untrusted text. Other languages are not affected and can be used to highlight untrusted text.
Publish Date: 2021-06-28
URL: CVE-2021-32723
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: Required - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://github.com/PrismJS/prism/security/advisories/GHSA-gj77-59wh-66hg
Release Date: 2021-06-28
Fix Resolution: prismjs - 1.24.0