Improper Input Validation 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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- published14 Sept 2026
- disclosed8 Apr 2026
- credittikitiki0370
Introduced: 8 Apr 2026
CVE-2026-39410 (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 Improper Input Validation via the getCookie function. An attacker can override legitimate cookies and bypass prefix protections by setting cookies with non-breaking space prefixes, leading to potential session fixation or hijacking.