GHSA-3rh3-wfr4-76mjMediumCVSS 6.5
Regular expression Denial of Service in multiple packages
🔗 CVE IDs covered (1)
📋 Description
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 [email protected] 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.
🎯 Affected products8
- npm/@ckeditor/ckeditor5-engine:<= 26.0.0
- npm/@ckeditor/ckeditor5-font:<= 26.0.0
- npm/@ckeditor/ckeditor5-image:<= 26.0.0
- npm/@ckeditor/ckeditor5-list:<= 26.0.0
- npm/@ckeditor/ckeditor5-markdown-gfm:<= 26.0.0
- npm/@ckeditor/ckeditor5-media-embed:<= 26.0.0
- npm/@ckeditor/ckeditor5-paste-from-office:<= 26.0.0
- npm/@ckeditor/ckeditor5-widget:<= 26.0.0
🔗 References (12)
- https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-3rh3-wfr4-76mj
- https://github.com/ckeditor/ckeditor5/releases/tag/v27.0.0
- https://www.npmjs.com/package/@ckeditor/ckeditor5-engine
- https://www.npmjs.com/package/@ckeditor/ckeditor5-font
- https://www.npmjs.com/package/@ckeditor/ckeditor5-image
- https://www.npmjs.com/package/@ckeditor/ckeditor5-list
- https://www.npmjs.com/package/@ckeditor/ckeditor5-markdown-gfm
- https://www.npmjs.com/package/@ckeditor/ckeditor5-media-embed
- https://www.npmjs.com/package/@ckeditor/ckeditor5-paste-from-office
- https://www.npmjs.com/package/@ckeditor/ckeditor5-widget
- https://nvd.nist.gov/vuln/detail/CVE-2021-21391
- https://github.com/advisories/GHSA-3rh3-wfr4-76mj