{"vulnerability": "CVE-2026-18420", "sightings": [{"uuid": "b6c6ed5f-a8a6-4980-af6d-b74b49a11ba1", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "cve-2026-18420", "type": "seen", "source": "https://bsky.app/profile/offseq.bsky.social/post/3mrxtxdxa7w2c", "content": "CRITICAL RCE in OpenSearch Dashboards TSVB plugin (CVE-2026-18420) \u26a0\ufe0f. Prototype pollution risk \u2014 full compromise possible. No patch yet; monitor advisories and restrict plugin access. https://radar.offseq.com/threat/cve-2026-18420-remote-code-execution-via-prototype-pollution-in-opensearch-dashb...", "creation_timestamp": "2026-07-31T21:00:32.834684Z"}, {"uuid": "74ae3343-e574-4bc0-b45b-673c15a041b4", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18420", "type": "seen", "source": "https://bsky.app/profile/thehackerwire.bsky.social/post/3mtkapnkb7h22", "content": "\ud83d\udfe0 CVE-2026-18420 - High (8.8)\n\nImproper input validation in the Time Series Visual Builder (TSVB) plugin in OpenSearch Dashboard...\n\nhttps://www.thehackerwire.com/vulnerability/CVE-2026-18420/\n\n#infosec #cybersecurity #CVE #vulnerability #security #patchstack", "creation_timestamp": "2026-08-20T22:01:59.713929Z"}]}