CVE-2026-35515

Nest is a framework for building scalable Node.js server-side applications. Prior to 11.1.18, SseStream.transform interpolates message.type and message.id directly into Server-Sent Events text protocol output without sanitizing newline characters \r, \n. Since the SSE protocol treats both \r and ...

CVE-2026-33128

H3 is a minimal HTTP 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...

CVE-2026-33128

H3 is a minimal HTTP 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...

h3 has a Server-Sent Events Injection via Unsanitized Newlines in Event Stream Fields

Summary createEventStream in h3 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...

PT-2026-26192

Summary createEventStream in h3 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...