Regular expression Denial of Service in multiple packages - @ckeditor/ckeditor5-widget

Description

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.

Recommendation

Update the @ckeditor/ckeditor5-widget package to the latest compatible version. Followings are version details:

• Affected version(s): <= 26.0.0
• Patched version(s): 27.0.0

References

• GHSA-3rh3-wfr4-76mj
• www.npmjs.com
• CVE-2021-21391
• CWE-400
• CAPEC-310
• OWASP 2021-A6

Related Issues

• Regular expression Denial of Service in multiple packages - @ckeditor/ckeditor5-media-embed - CVE-2021-21391
• Regular expression Denial of Service in multiple packages - @ckeditor/ckeditor5-list - CVE-2021-21391
• Regular expression Denial of Service in multiple packages - @ckeditor/ckeditor5-image - CVE-2021-21391
• Regular expression Denial of Service in multiple packages - @ckeditor/ckeditor5-paste-from-office - CVE-2021-21391

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Tags:

npm

@ckeditor/ckeditor5-widget