HTML Injection Affecting hono package, versions <4.12.16
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-HONO-16438965
- published7 May 2026
- disclosed6 May 2026
- creditSaad FELLAHI
Introduced: 6 May 2026
CVE-2026-44455 (opens in a new tab)How to fix?
Upgrade hono to version 4.12.16 or higher.
Overview
hono is an Ultrafast web framework for the Edges
Affected versions of this package are vulnerable to HTML Injection via the jsx element tag. An attacker can inject unintended HTML elements or attributes, corrupt the HTML structure, or execute scripts by supplying malicious tag names as input to the rendering process.
Note: This is only exploitable if applications construct JSX tag names from untrusted input; applications using static or allowlisted tag names are not affected.