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.
References
Link | Resource |
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https://github.com/ckeditor/ckeditor5/releases/tag/v25.0.0 | Release Notes Third Party Advisory |
https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-hgmg-hhc8-g5wr | Third Party Advisory |
https://www.npmjs.com/package/%40ckeditor/ckeditor5-markdown-gfm |
Configurations
History
07 Nov 2023, 03:29
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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