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CVE-2021-21254

Published: 2021-01-29T22:15Z
Last Modified: 2024-11-21T05:47Z
Source: MITRE CVE List
License: MITRE-CVE-TOS
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. > MITRE Terms of Use apply – see LICENSE‑MITRE.txt