{"action":"Upgrade h3 to 1.15.6 or later.","affected":[{"fixed":"2.0.1-rc.15","introduced":"2.0.0"},{"fixed":"1.15.6","introduced":"0"}],"component":"h3","cve_ids":["CVE-2026-33128"],"ecosystem":"npm","epss":0.00583,"exploited":false,"fixed_versions":["2.0.1-rc.15","1.15.6"],"ghsa_id":"GHSA-22cc-p3c6-wpvm","id":"tcs_01M5KERKWCFC5PXTE8YVV5MQ53","modified_at":"2026-03-20T21:36:02.444400Z","published_at":"2026-03-18T16:17:43Z","references":["https://osv.dev/vulnerability/GHSA-22cc-p3c6-wpvm","https://github.com/h3js/h3/security/advisories/GHSA-22cc-p3c6-wpvm","https://nvd.nist.gov/vuln/detail/CVE-2026-33128","https://github.com/h3js/h3/commit/7791538e15ca22437307c06b78fa155bb73632a6","https://github.com/h3js/h3","https://github.com/h3js/h3/blob/52c82e18bb643d124b8b9ec3b1f62b081f044611/src/utils/internal/event-stream.ts#L170-L187"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-22cc-p3c6-wpvm","url":"https://osv.dev/vulnerability/GHSA-22cc-p3c6-wpvm"}],"summary":"h3 has a Server-Sent Events Injection via Unsanitized Newlines in Event Stream Fields"}