{"vulnerability": "CVE-2026-5740", "sightings": [{"uuid": "80e15a43-8f92-4654-980d-3f43fb79be54", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-5740", "type": "seen", "source": "https://bsky.app/profile/cve.skyfleet.blue/post/3mmgxnwxwvc2p", "content": "CVE-2026-5740 - Unauthenticated WebSocket binary frame causes denial of service in Mattermost Server\nCVE ID : CVE-2026-5740\n \n Published : May 22, 2026, 10:22 a.m. | 1\u00a0hour, 57\u00a0minutes ago\n \n Description : Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x &l...", "creation_timestamp": "2026-05-22T12:45:37.577799Z"}]}