{"metadata": {"vulnerability": "CVE-2026-55888", "count": 24, "kinds": {"milestone": 8, "sighting": 1, "kev": 0, "other": 15}, "linked_omitted": 0}, "data": [{"timestamp": "2026-06-17T16:59:42.760Z", "date_only": false, "value": "2026-06-17T16:59:42.760Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-55888", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-07-19T11:11:54Z", "date_only": false, "value": "2026-07-19T11:11:54Z", "kind": "milestone", "label": "Published", "source": "osv_openeuler \u00b7 OESA-2026-2998", "record": "OESA-2026-2998", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-07-19T11:11:54Z", "date_only": false, "value": "2026-07-19T11:11:54Z", "kind": "milestone", "label": "Published", "source": "osv_openeuler \u00b7 OESA-2026-2999", "record": "OESA-2026-2999", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-07-19T11:11:54Z", "date_only": false, "value": "2026-07-19T11:11:54Z", "kind": "milestone", "label": "Published", "source": "osv_openeuler \u00b7 OESA-2026-3000", "record": "OESA-2026-3000", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-08-06T11:11:54Z", "date_only": false, "value": "2026-08-06T11:11:54Z", "kind": "other", "label": "Updated", "source": "osv_openeuler \u00b7 OESA-2026-2998", "record": "OESA-2026-2998", "field": "modified", "linked_record": true}, {"timestamp": "2026-08-06T11:11:54Z", "date_only": false, "value": "2026-08-06T11:11:54Z", "kind": "other", "label": "Updated", "source": "osv_openeuler \u00b7 OESA-2026-2999", "record": "OESA-2026-2999", "field": "modified", "linked_record": true}, {"timestamp": "2026-08-06T11:11:54Z", "date_only": false, "value": "2026-08-06T11:11:54Z", "kind": "other", "label": "Updated", "source": "osv_openeuler \u00b7 OESA-2026-3000", "record": "OESA-2026-3000", "field": "modified", "linked_record": true}, {"timestamp": "2026-10-23T12:35:23.077Z", "date_only": false, "value": "2026-10-23T12:35:23.077Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-55888", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-23T12:35:23.077Z", "date_only": false, "value": "2026-10-23T12:35:23.077Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / GitHub_M", "record": "CVE-2026-55888", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-23T13:15:15.708Z", "date_only": false, "value": "2026-10-23T13:15:15.708139Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117490405552542115", "record": "CVE-2026-55888", "field": "creation_timestamp", "uuid": "1dc1bc26-f5cf-4cb8-b39a-4aa79a6dfb7d", "content": "CVE-2026-55888 XDG Desktop Portal: Arbitrary file access via SaveFiles \"files\" option path traversal XDG Desktop Portal is a desktop integration portal. Prior to version 1.22.1, malicious sandboxed applications can use the FileChooser.SaveFiles method to gain arbitrary file access to non-existing files on the host (limited to files the user has access to). The FileChooser.SaveFiles method takes optional filenames which get appended to the selected directory by backends. The backends are supposed to check that the file does not exist yet. The filenames are not validated by the frontend and also not by common backends. This issue has been patched in version 1.22.1.\nhttps://www.cve.org/CVERecord?id=CVE-2026-55888https://github.com/flatpak/xdg-desktop-portal/security/advisories/GHSA-cm83-2936-gxjmhttps://github.com/flatpak/xdg-desktop-portal/releases/tag/1.22.1#flatpak #xdg-desktop-portal#CVE_2026_55888#bot", "url": "https://infosec.exchange/users/cve/statuses/117490405552542115"}, {"timestamp": "2026-10-23T13:17:00Z", "date_only": false, "value": "2026-10-23T13:17:00Z", "kind": "milestone", "label": "Published", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2026-55888", "record": "UBUNTU-CVE-2026-55888", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-23T13:17:10.090Z", "date_only": false, "value": "2026-10-23T13:17:10.090", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-55888", "record": "FKIE_CVE-2026-55888", "field": "published", "metric_role": "disclosure", "metric_basis": 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