Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/36269?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/36269?format=api", "vulnerability_id": "VCID-r4vp-zkkv-jfex", "summary": "CKEditor 5 Markdown plugin Regular expression Denial of Service\n### Impact\nA regular expression denial of service (ReDoS) vulnerability has been discovered in the CKEditor 5 Markdown plugin code. The vulnerability allowed to abuse a link recognition regular expression, which could cause a significant performance drop resulting in a browser tab freeze. It affects all users using the CKEditor 5 Markdown plugin at version <= 24.0.0. \n\n### Patches\nThe problem has been recognized and patched. The fix will be available in version 25.0.0.\n\n### Workarounds\nThe user can work around the issue by:\n- Upgrading CKEditor 5 to version 25.0.0.\n- Disabling the Markdown plugin.\n\n### More information\nIf you have any questions or comments about this advisory:\n* Email us at [security@cksource.com](mailto:security@cksource.com)\n\n### Acknowledgements\nThe CKEditor 5 team would like to thank Erik Krogh Kristensen from the GitHub team for recognizing this vulnerability and \nAlvaro Muñoz from GitHub for reporting it.", "aliases": [ { "alias": "CVE-2021-21254" }, { "alias": "GHSA-hgmg-hhc8-g5wr" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/229580?format=api", "purl": "pkg:npm/ckeditor5@25.0.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6q1k-xwcb-53hm" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor5@25.0.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/74344?format=api", "purl": "pkg:npm/%40ckeditor/ckeditor5-markdown-gfm@25.0.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-wpgs-aj5v-zbbw" }, { "vulnerability": "VCID-y831-gekf-cqh6" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/%2540ckeditor/ckeditor5-markdown-gfm@25.0.0" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/229550?format=api", "purl": "pkg:npm/ckeditor5@0.0.1-security", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6q1k-xwcb-53hm" }, { "vulnerability": "VCID-r4vp-zkkv-jfex" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor5@0.0.1-security" }, { "url": "http://public2.vulnerablecode.io/api/packages/229551?format=api", "purl": "pkg:npm/ckeditor5@10.0.0-rc.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6q1k-xwcb-53hm" }, { 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