GHSA-3rh3-wfr4-76mj
Dashboard / Vulnerabilities / GHSA-3rh3-wfr4-76mj
Summary: Regular expression Denial of Service in multiple packages
Details: ### 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.
References: https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-3rh3-wfr4-76mj, https://nvd.nist.gov/vuln/detail/CVE-2021-21391, 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
Affected packages
Package
Name: @ckeditor/ckeditor5-engine
Purl: pkg:npm/%40ckeditor/ckeditor5-engine
Affected ranges
Type: SEMVER
Events:
