CVE-2021-21254

CKEditor 5 is an open source rich text editor framework with a modular architecture. The CKEditor 5 Markdown plugin (@ckeditor/ckeditor5-markdown-gfm) before version 25.0.0 has a regex denial of service (ReDoS) vulnerability. The vulnerability allowed to abuse link recognition regular expression, which could cause a significant performance drop resulting in browser tab freeze. It affects all users using CKEditor 5 Markdown plugin at version <= 24.0.0. The problem has been recognized and patched. The fix will be available in version 25.0.0.
Configurations

Configuration 1 (hide)

cpe:2.3:a:ckeditor:ckeditor5:*:*:*:*:*:*:*:*

History

07 Nov 2023, 03:29

Type Values Removed Values Added
References
  • {'url': 'https://www.npmjs.com/package/@ckeditor/ckeditor5-markdown-gfm', 'name': 'https://www.npmjs.com/package/@ckeditor/ckeditor5-markdown-gfm', 'tags': ['Release Notes', 'Third Party Advisory'], 'refsource': 'MISC'}
  • () https://www.npmjs.com/package/%40ckeditor/ckeditor5-markdown-gfm -

Information

Published : 2021-01-29 22:15

Updated : 2024-02-28 18:08


NVD link : CVE-2021-21254

Mitre link : CVE-2021-21254

CVE.ORG link : CVE-2021-21254


JSON object : View

Products Affected

ckeditor

  • ckeditor5
CWE
CWE-400

Uncontrolled Resource Consumption