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 |
---|---|
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 |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: GitHub_M
Published: 2021-01-29T21:55:14
Updated: 2021-01-29T21:55:13
Reserved: 2020-12-22T00:00:00
Link: CVE-2021-21254
JSON object: View
NVD Information
Status : Modified
Published: 2021-01-29T22:15:14.797
Modified: 2023-11-07T03:29:41.453
Link: CVE-2021-21254
JSON object: View
Redhat Information
No data.
CWE