CVE-2021-21254 | BDVDB-2026-148305 Detail

Description#

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.

Impact#

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Exploit#

History#

1. Version 12021-01-29Record published in the CVE List.
2. Version 22024-08-03Most recent update recorded in the CVE List.