{"vulnerability": "cve-2026-56821", "sightings": [{"uuid": "3f49754a-6453-4994-bb8f-b7d533867084", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2026-56821", "type": "published-proof-of-concept", "source": "https://github.com/netty/netty/security/advisories/GHSA-g7hg-vrcf-mvmr", "content": "", "creation_timestamp": "2026-07-22T22:35:12.909806Z"}, {"uuid": "563aeac3-d204-461e-aee8-5098db52d08a", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2026-56821", "type": "seen", "source": "https://bsky.app/profile/cve.skyfleet.blue/post/3mrqwjehar622", "content": "", "creation_timestamp": "2026-07-29T02:57:45.776423Z"}, {"uuid": "160f6aa7-667d-4525-ad63-9e246bc3231d", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2026-56821", "type": "seen", "source": "https://www.acn.gov.it/portale/w/netty-poc-pubbliche-per-lo-sfruttamento-delle-cve-2026-56822-e-cve-2026-56821", "content": "", "creation_timestamp": "2026-07-29T12:15:13.311817Z"}, {"uuid": "bde24e95-75ed-49a7-b018-681701d614fa", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2026-56821", "type": "seen", "source": "https://www.acn.gov.it/portale/w/netty-poc-pubbliche-per-lo-sfruttamento-delle-cve-2026-56822-e-cve-2026-56821", "content": "", "creation_timestamp": "2026-07-30T01:00:44.720501Z"}]}