CVE-2026-33128
CVE-2026-33128 · h3 has a Server-Sent Events Injection via Unsanitized Newlines in Event Stream Fields
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
H3 is a minimal H(TTP) framework. In versions prior to 1.15.6 and between 2.0.0 through 2.0.1-rc.14, createEventStream is vulnerable to Server-Sent Events (SSE) injection due to missing newline sanitization in formatEventStreamMessage() and formatEventStreamComment(). An attacker who controls any part of an SSE message field (id, event, data, or comment) can inject arbitrary SSE events to connected clients. This issue is fixed in versions 1.15.6 and 2.0.1-rc.15.
CVSS 7.5 · Alta · EPSS 0,6% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: node
Productos y versiones afectados
Fuentes originales
- https://github.com/h3js/h3/security/advisories/GHSA-22cc-p3c6-wpvm
- https://github.com/h3js/h3/commit/7791538e15ca22437307c06b78fa155bb73632a6
- https://github.com/h3js/h3/blob/52c82e18bb643d124b8b9ec3b1f62b081f044611/src/utils/internal/event-stream.ts#L170-L187
- https://nvd.nist.gov/vuln/detail/CVE-2026-33128