{"metadata": {"vulnerability": "CVE-2026-19621", "count": 13, "kinds": {"milestone": 4, "sighting": 1, "kev": 0, "other": 8}}, "data": [{"timestamp": "2026-08-12T14:25:35.113Z", "date_only": false, "value": "2026-08-12T14:25:35.113Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-19621", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-16T07:06:00.580Z", "date_only": false, "value": "2026-10-16T07:06:00.580Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-19621", "field": "cveMetadata.datePublished"}, {"timestamp": "2026-10-16T07:06:00.580Z", "date_only": false, "value": "2026-10-16T07:06:00.580Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / Mattermost", "record": "CVE-2026-19621", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-16T08:12:26.989Z", "date_only": false, "value": "2026-10-16T08:12:26.989234Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117449578674573750", "record": "CVE-2026-19621", "field": "creation_timestamp", "uuid": "5c23dfe0-8703-4820-9d03-d2c20815daa7", "content": "CVE-2026-19621 Mattermost leaks interactive-message integration secrets to non-admin users via post-deletion events and thread reads Mattermost versions 11.10.x <= 11.10.0, 11.7.x <= 11.7.9, 11.9.x <= 11.9.1, 11.8.x <= 11.8.5 fail to strip action integration secrets from post payloads before broadcasting post-deletion web socket events and returning thread API responses, which allows an authenticated channel member to obtain server-side webhook URLs and authentication context from interactive-message posts via the post_deleted websocket event or the threads REST API.. Mattermost Advisory ID: MMSA-2026-00766\nhttps://www.cve.org/CVERecord?id=CVE-2026-19621https://mattermost.com/security-updates#mattermost #Mattermost#CVE_2026_19621#bot", "url": "https://infosec.exchange/users/cve/statuses/117449578674573750"}, {"timestamp": "2026-10-16T08:17:13Z", "date_only": false, "value": "2026-10-16T08:17:13Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-9MH4-36GV-G7WX", "record": "GHSA-9MH4-36GV-G7WX", "field": "database_specific.nvd_published_at"}, {"timestamp": "2026-10-16T08:17:13.390Z", "date_only": false, "value": "2026-10-16T08:17:13.390", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-19621", "record": "FKIE_CVE-2026-19621", "field": "published"}, {"timestamp": "2026-10-16T09:30:29Z", "date_only": false, "value": "2026-10-16T09:30:29Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-9MH4-36GV-G7WX", "record": "GHSA-9MH4-36GV-G7WX", "field": "published"}, {"timestamp": "2026-10-16T09:30:30Z", "date_only": false, "value": "2026-10-16T09:30:30Z", "kind": "other", "label": "Updated", "source": "github \u00b7 GHSA-9MH4-36GV-G7WX", "record": "GHSA-9MH4-36GV-G7WX", "field": "modified"}, {"timestamp": "2026-10-16T11:58:24.369Z", "date_only": false, "value": "2026-10-16T11:58:24.369260Z", "kind": "other", "label": "Recorded", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-19621", "field": "containers.adp.0.metrics.0.other.content.timestamp"}, {"timestamp": "2026-10-16T11:58:24.369Z", "date_only": false, "value": "2026-10-16T11:58:24.369260Z", "kind": "other", "label": "Recorded", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-19621", "record": "FKIE_CVE-2026-19621", "field": "metrics.ssvcV203.0.ssvcData.timestamp"}, {"timestamp": "2026-10-16T11:58:36.743Z", "date_only": false, "value": "2026-10-16T11:58:36.743Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-19621", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-10-16T11:58:36.743Z", "date_only": false, "value": "2026-10-16T11:58:36.743Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-19621", "field": "containers.adp.0.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-16T19:23:18.623Z", "date_only": false, "value": "2026-10-16T19:23:18.623", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-19621", "record": "FKIE_CVE-2026-19621", "field": "lastModified"}]}