{"vulnerability": "CVE-2026-42490", "sightings": [{"uuid": "1f3e7427-8be4-4224-843f-05d7ad70e51c", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2026-42490", "type": "seen", "source": "https://www.acn.gov.it/portale/w/risolte-vulnerabilita-in-xen", "content": "", "creation_timestamp": "2026-06-10T04:24:52.000000Z"}, {"uuid": "fa297b20-70ab-4da8-91e8-87a356f425b1", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-42490", "type": "seen", "source": "https://bsky.app/profile/infosec.skyfleet.blue/post/3mnucoaa2ss26", "content": "Xen Security Advisory 492 v3 (CVE-2026-42489,CVE-2026-42490) - domctl lock open to abuse", "creation_timestamp": "2026-06-09T13:32:26.981926Z"}, {"uuid": "113925f8-77bb-4e40-a554-a256f813abf5", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-42490", "type": "seen", "source": "https://infosec.exchange/users/andersonc0d3/statuses/116720431315436112", "content": "Xen Security Advisory 491 v2 (CVE-2026-42487) - x86 HVM I/O port list traversal\nhttps://seclists.org/oss-sec/2026/q2/857\nXen Security Advisory 492 v3 (CVE-2026-42489,CVE-2026-42490) - domctl lock open to abuse\nhttps://seclists.org/oss-sec/2026/q2/858\nXen Security Advisory 493 v2 (CVE-2025-10263) - Arm: Completion of memory accesses not guaranteed by completion of a TLBI\nhttps://seclists.org/oss-sec/2026/q2/859", "creation_timestamp": "2026-06-09T13:41:01.482582Z"}]}