CVE-2026-59895
CVE-2026-59895 · Hono: Server-Side XSS via JSX Escaping Bypass in cx() Utility
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Hono is a Web application framework that provides support for any JavaScript runtime. From 4.0.0 before 4.12.27, cx() in hono/css composes class names from plain strings but marks the result as already escaped without HTML-escaping the input, allowing untrusted className values used in a JSX class attribute during server-side rendering to break out of the attribute and inject arbitrary markup. This issue is fixed in version 4.12.27.
CVSS 6.1 · Moyenne · EPSS 0,3% · Correctif disponible
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Pile logicielle: node