{"metadata": {"vulnerability": "CVE-2026-55875", "count": 10, "kinds": {"milestone": 3, "sighting": 1, "kev": 0, "other": 6}}, "data": [{"timestamp": "2026-06-17T16:59:42.759Z", "date_only": false, "value": "2026-06-17T16:59:42.759Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-55875", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-15T17:24:00.931Z", "date_only": false, "value": "2026-10-15T17:24:00.931Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-55875", "field": "cveMetadata.datePublished"}, {"timestamp": "2026-10-15T17:24:00.931Z", "date_only": false, "value": "2026-10-15T17:24:00.931Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / GitHub_M", "record": "CVE-2026-55875", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-15T17:33:56.073Z", "date_only": false, "value": "2026-10-15T17:33:56.073835Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117446124028608437", "record": "CVE-2026-55875", "field": "creation_timestamp", "uuid": "64c71862-3e77-477d-9d23-03b217e73f4d", "content": "CVE-2026-55875 Helium: SSRF via External Calendar URL Allows Authenticated Users to Probe Internal Network Helium is a free online student planner for classes, homework, grades, and notes. Prior to 2.2.60, any authenticated user can submit an arbitrary URL to POST /feed/externalcalendars/, where helium/feed/services/icalexternalcalendarservice.py uses validate_url to check only URL syntax before passing the value to urllib.request.urlopen, and fetch_ical_conditional periodically refetches the stored URL. The server can therefore issue requests to attacker-selected external or internal hosts, while distinct responses, including an uncaught http.client.RemoteDisconnected condition for non-HTTP services, reveal internal host and port reachability. The supported impact is forced outbound requests and internal service reconnaissance; the advisory does not demonstrate secret retrieval because the relevant ECS credentials path is task-specific and unpredictable. This issue is fixed in version 2.2.60.\nhttps://www.cve.org/CVERecord?id=CVE-2026-55875https://github.com/HeliumEdu/platform/security/advisories/GHSA-2f83-94pv-v3f5https://github.com/HeliumEdu/platform/commit/f0de5c985c701942758b805a3d11dfb008a6af88#HeliumEdu #platform#CVE_2026_55875#bot", "url": "https://infosec.exchange/users/cve/statuses/117446124028608437"}, {"timestamp": "2026-10-15T17:47:47.971Z", "date_only": false, "value": "2026-10-15T17:47:47.971513Z", "kind": "other", "label": "Recorded", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-55875", "field": "containers.adp.0.metrics.0.other.content.timestamp"}, {"timestamp": "2026-10-15T17:47:47.971Z", "date_only": false, "value": "2026-10-15T17:47:47.971513Z", "kind": "other", "label": "Recorded", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-55875", "record": "FKIE_CVE-2026-55875", "field": "metrics.ssvcV203.0.ssvcData.timestamp"}, {"timestamp": "2026-10-15T17:48:20.682Z", "date_only": false, "value": "2026-10-15T17:48:20.682Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-55875", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-10-15T17:48:20.682Z", "date_only": false, "value": "2026-10-15T17:48:20.682Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-55875", "field": "containers.adp.0.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-15T18:17:28.130Z", "date_only": false, "value": "2026-10-15T18:17:28.130", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-55875", "record": "FKIE_CVE-2026-55875", "field": "published"}, {"timestamp": "2026-10-16T20:04:29.760Z", "date_only": false, "value": "2026-10-16T20:04:29.760", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-55875", "record": "FKIE_CVE-2026-55875", "field": "lastModified"}]}