GHSA-P6XX-57QC-3WXR Hono Vulnerable to SSE Control Field Injection via CR/LF in writeSSE()

Summary When using streamSSE in Streaming Helper, the event, id, and retry fields were not validated for carriage return \r or newline \n characters. Because the SSE protocol uses line breaks as field delimiters, this could allow injection of additional SSE fields within the same event frame if...

CVE-2026-29085: Improper Neutralization of Special Elements in Output Used by a Downstream Component

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.12.4, when using streamSSE in Streaming Helper, the event, id, and retry fields were not validated for carriage return \r or newline \n characters. Because the SSE protocol uses line breaks as...