{"action":"Upgrade h2o to 3.46.0.10 or later.","affected":[{"fixed":"3.46.0.10","introduced":"0"}],"component":"h2o","cve_ids":["CVE-2026-3960"],"ecosystem":"PyPI","epss":0.00938,"exploited":false,"fixed_versions":["3.46.0.10"],"ghsa_id":"GHSA-qmcv-hh7c-3m56","id":"tcs_01M5KGXXQHJ1Y01E9BVPMGN7R5","modified_at":"2026-07-13T07:26:29.642873751Z","published_at":"2026-04-23T10:16:17.813Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2180","https://github.com/h2oai/h2o-3/commit/b9ae2d3c5220db2dc53753357a783e590364d044","https://huntr.com/bounties/6954fe04-b905-453f-8c53-205ac8377e0d"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"PYSEC-2026-2180","url":"https://osv.dev/vulnerability/PYSEC-2026-2180"}],"summary":"A critical remote code execution vulnerability exists in the unauthenticated REST API endpoint /99/ImportSQLTable in H2O-3 version 3.46.0.9 and prior. The vulnerability arises due to insufficient secu"}