CVE-2021-21391 – @ckeditor/ckeditor5-widget

Package

Manager: npm
Name: @ckeditor/ckeditor5-widget
Vulnerable Version: >=0 <27.0.0

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS: 0.01354 pctl0.79386

Details

Regular expression Denial of Service in multiple packages ### Impact A regular expression denial of service (ReDoS) vulnerability has been discovered in multiple CKEditor 5 packages. The vulnerability allowed to abuse particular regular expressions, which could cause a significant performance drop resulting in a browser tab freeze. It affects all users using the CKEditor 5 packages listed above at version <= 26.0.0. ### Patches The problem has been recognized and patched. The fix will be available in version 27.0.0. ### For more information Email us at security@cksource.com if you have any questions or comments about this advisory. ### Acknowledgements The CKEditor 5 team would like to thank Yeting Li for recognizing and reporting these vulnerabilities.

Metadata

Created: 2021-04-06T17:28:41Z
Modified: 2021-04-30T17:30:42Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/04/GHSA-3rh3-wfr4-76mj/GHSA-3rh3-wfr4-76mj.json
CWE IDs: ["CWE-400"]
Alternative ID: GHSA-3rh3-wfr4-76mj
Finding: F002
Auto approve: 1