{"action":"Upgrade h3 to 2.0.1-rc.15 or later.","affected":[{"fixed":"2.0.1-rc.15","introduced":"2.0.0-0"}],"component":"h3","cve_ids":["CVE-2026-33131"],"ecosystem":"npm","epss":0.00395,"exploited":false,"fixed_versions":["2.0.1-rc.15"],"ghsa_id":"GHSA-3vj8-jmxq-cgj5","id":"tcs_01M5KEYB972TDJKTZQDTBM20T3","modified_at":"2026-03-20T21:59:20.258715Z","published_at":"2026-03-18T16:18:12Z","references":["https://osv.dev/vulnerability/GHSA-3vj8-jmxq-cgj5","https://github.com/h3js/h3/security/advisories/GHSA-3vj8-jmxq-cgj5","https://nvd.nist.gov/vuln/detail/CVE-2026-33131","https://github.com/h3js/h3"],"severity":{"label":"high","score":7.4},"sources":[{"source":"osv","source_id":"GHSA-3vj8-jmxq-cgj5","url":"https://osv.dev/vulnerability/GHSA-3vj8-jmxq-cgj5"}],"summary":"h3 has a middleware bypass with one gadget"}