medium4.7
CVE-2026-44455
Hono is a Web application framework that provides support for any JavaScript runtime.
Impact
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.16, Improper handling of JSX element tag names in hono/jsx allowed unvalidated tag names to be directly inserted into the generated HTML output. When untrusted input is used as a tag name via the programmatic jsx() or createElement() APIs during server-side rendering, specially crafted values may break out of the intended element context and inject unintended HTML. This vulnerability is fixed in 4.12.16.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | hono | < 4.12.16 | 4.12.16 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Hono | Hono | before 4.12.16 |