Medium severity4.3GHSA Advisory· Published May 13, 2026· Updated May 13, 2026
CVE-2026-44458
CVE-2026-44458
Description
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.18, the JSX renderer escapes style attribute object values for HTML but not for CSS. Untrusted input in a style object value or property name can therefore inject additional CSS declarations into the rendered style attribute. The impact is limited to CSS and does not allow JavaScript execution or HTML attribute breakout. This vulnerability is fixed in 4.12.18.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
hononpm | < 4.12.18 | 4.12.18 |
Affected products
2Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
2- github.com/advisories/GHSA-qp7p-654g-cw7pghsaADVISORY
- github.com/honojs/hono/security/advisories/GHSA-qp7p-654g-cw7pnvdVendor AdvisoryWEB
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