CVE-2026-93981
hono/jsx before 4.13.7 Cross-Site Scripting via Unescaped Strings
CVSS Score
4.7
EPSS Score
0.0%
EPSS Percentile
0th
hono before 4.13.7 fails to HTML-escape plain strings rendered by hono/jsx as a child or fallback of Suspense, as a string child of ErrorBoundary alongside an asynchronous sibling, as the single child of a Context.Provider, or as the root value passed to renderToString() or renderToReadableStream() from hono/jsx/dom/server. These paths stringify their input and treat the result as already-escaped markup, so an attacker who controls such a string during server-side rendering can inject arbitrary HTML and execute script under the application's origin.
| CWE | CWE-79 |
| Vendor | honojs |
| Product | hono |
| Published | Sep 19, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
honojs / hono
0 < 4.13.7
References
Credits
🔍 ggmolly