{"metadata": {"vulnerability": "CVE-2021-21254", "count": 17, "kinds": {"milestone": 4, "sighting": 1, "kev": 0, "other": 12}}, "data": [{"timestamp": "2020-12-22T00:00:00Z", "date_only": false, "value": "2020-12-22T00:00:00.000Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2021-21254", "field": "cveMetadata.dateReserved"}, {"timestamp": "2021-01-29T00:00:00Z", "date_only": true, "value": "2021-01-29", "kind": "other", "label": "Pubdate", "source": "gsd \u00b7 GSD-2021-21254", "record": "GSD-2021-21254", "field": "namespaces.gitlab.com.advisories.0.pubdate"}, {"timestamp": "2021-01-29T21:51:22Z", "date_only": false, "value": "2021-01-29T21:51:22Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-HGMG-HHC8-G5WR", "record": "GHSA-HGMG-HHC8-G5WR", "field": "published"}, {"timestamp": "2021-01-29T21:55:13Z", "date_only": false, "value": "2021-01-29T21:55:13.000Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / GitHub_M", "record": "CVE-2021-21254", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2021-01-29T21:55:14Z", "date_only": false, "value": "2021-01-29T21:55:14.000Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2021-21254", "field": "cveMetadata.datePublished"}, {"timestamp": "2021-01-29T22:15:00Z", "date_only": false, "value": "2021-01-29T22:15:00Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-HGMG-HHC8-G5WR", "record": "GHSA-HGMG-HHC8-G5WR", "field": "database_specific.nvd_published_at"}, {"timestamp": "2021-01-29T22:15:00Z", "date_only": false, "value": "2021-01-29T22:15Z", "kind": "other", "label": "Published Date", "source": "gsd \u00b7 GSD-2021-21254", "record": "GSD-2021-21254", "field": "namespaces.nvd.nist.gov.publishedDate"}, {"timestamp": "2021-01-29T22:15:14.797Z", "date_only": false, "value": "2021-01-29T22:15:14.797", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2021-21254", "record": "FKIE_CVE-2021-21254", "field": "published"}, {"timestamp": "2021-01-30T01:25:07Z", "date_only": false, "value": "2021-01-30T01:25:07.000000Z", "kind": "sighting", "label": "Seen", "source": "https://t.me/cibsecurity/22873", "record": "CVE-2021-21254", "field": "creation_timestamp", "uuid": "f8b8a686-9912-4b35-bc91-7c01ec989beb", "content": "\u203c CVE-2021-21254 \u203c\n\nCKEditor 5 is an open source rich text editor framework with a modular architecture. The CKEditor 5 Markdown plugin (@ckeditor/ckeditor5-markdown-gfm) before version 25.0.0 has a regex denial of service (ReDoS) vulnerability. The vulnerability allowed to abuse link recognition regular expression, which could cause a significant performance drop resulting in browser tab freeze. It affects all users using CKEditor 5 Markdown plugin at version <= 24.0.0. The problem has been recognized and patched. The fix will be available in version 25.0.0.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "url": "https://t.me/cibsecurity/22873"}, {"timestamp": "2021-02-01T00:00:00Z", "date_only": true, "value": "2021-02-01", "kind": "other", "label": "Date", "source": "gsd \u00b7 GSD-2021-21254", "record": "GSD-2021-21254", "field": "namespaces.gitlab.com.advisories.1.date"}, {"timestamp": "2021-02-02T00:00:00Z", "date_only": true, "value": "2021-02-02", "kind": "other", "label": "Date", "source": "gsd \u00b7 GSD-2021-21254", "record": "GSD-2021-21254", "field": "namespaces.gitlab.com.advisories.0.date"}, {"timestamp": "2022-08-09T17:31:00Z", "date_only": false, "value": "2022-08-09T17:31Z", "kind": "other", "label": "Last Modified Date", "source": "gsd \u00b7 GSD-2021-21254", "record": "GSD-2021-21254", "field": "namespaces.nvd.nist.gov.lastModifiedDate"}, {"timestamp": "2022-08-11T18:16:15Z", "date_only": false, "value": "2022-08-11T18:16:15Z", "kind": "other", "label": "Updated", "source": "github \u00b7 GHSA-HGMG-HHC8-G5WR", "record": "GHSA-HGMG-HHC8-G5WR", "field": "modified"}, {"timestamp": "2023-12-13T01:23:10.991Z", "date_only": false, "value": "2023-12-13T01:23:10.991069Z", "kind": "other", "label": "Updated", "source": "gsd \u00b7 GSD-2021-21254", "record": "GSD-2021-21254", "field": "gsd.osvSchema.modified"}, {"timestamp": "2024-08-03T18:09:14.916Z", "date_only": false, "value": "2024-08-03T18:09:14.916Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2021-21254", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2024-08-03T18:09:14.916Z", "date_only": false, "value": "2024-08-03T18:09:14.916Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CVE", "record": "CVE-2021-21254", "field": "containers.adp.0.providerMetadata.dateUpdated"}, {"timestamp": "2026-06-17T03:35:08.190Z", "date_only": false, "value": "2026-06-17T03:35:08.190", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2021-21254", "record": "FKIE_CVE-2021-21254", "field": "lastModified"}]}