HTTP Response Splitting Affecting org.webjars.npm:hono package, versions [,4.12.12)
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-JAVA-ORGWEBJARSNPM-19638914
- published14 Sept 2026
- disclosed8 Apr 2026
- creditAthul Jayaram
Introduced: 8 Apr 2026
CVE-2026-56762 (opens in a new tab)How to fix?
Upgrade org.webjars.npm:hono to version 4.12.12 or higher.
Overview
org.webjars.npm:hono is an Ultrafast web framework for the Edges
Affected versions of this package are vulnerable to HTTP Response Splitting via the setCookie function. An attacker can cause runtime errors and potentially disrupt application behavior by supplying specially crafted input as the cookie name, leading to malformed Set-Cookie header values.