{"vulnerability": "cve-2026-49451", "sightings": [{"uuid": "3afd0fbe-fe02-48dc-b5c6-2932f388a1a9", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-49451", "type": "seen", "source": "https://bsky.app/profile/cve.skyfleet.blue/post/3mpjkwmjvtu2m", "content": "CVE-2026-49451 - Microsoft.OpenAPI: Circular schema references may terminate OpenAPI parsing\nCVE ID : CVE-2026-49451\n \n Published : June 30, 2026, 4:01 p.m. | 1\u00a0hour, 45\u00a0minutes ago\n \n Description : The OpenAPI.NET SDK contains a useful object model for OpenAPI documents in .N...", "creation_timestamp": "2026-06-30T17:51:24.244846Z"}, {"uuid": "69abd400-8a19-4c21-a632-237fbdf7ba59", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-49451", "type": "seen", "source": "https://infosec.exchange/users/vuldb/statuses/116846983714704954", "content": "Our CTI team identified a lot of activities targeting Microsoft OpenAPI.NET (CVE-2026-49451) https://vuldb.com/vuln/374875/cti", "creation_timestamp": "2026-07-01T22:04:37.590215Z"}, {"uuid": "417b6d06-7372-4345-a58c-5493ee4d1170", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-49451", "type": "seen", "source": "https://bsky.app/profile/kriptabiz.bsky.social/post/3mpqckdbsln2i", "content": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c CVE-2026-49451 \u0432 OpenAPI.NET SDK: \u0443\u0433\u0440\u043e\u0437\u044b \u0438 \u0441\u043f\u043e\u0441\u043e\u0431\u044b \u0437\u0430\u0449\u0438\u0442\u044b\n\n\n\nhttps://kripta.biz/posts/B4BEDC3D-74B3-49B8-8AA5-618CB77B838E", "creation_timestamp": "2026-07-03T10:10:00.401969Z"}]}