cvedb.io
CVE-2026-29085
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2026-03-04T23:16:10.423 · Last modified 2026-06-17T10:29:34.467

Summary

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 field delimiters, this could allow injection of additional SSE fields within the same event frame if untrusted input was passed into these fields. This issue has been patched in version 4.12.4.

Affected products

hono — hono

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.