Is CVE-2026-59896 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-59896?

CVE-2026-59896 has a CVSS v3 severity of MEDIUM (6.5).

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CVE-2026-59896

Description

Hono is a Web application framework that provides support for any JavaScript runtime. From 4.11.8 before 4.12.27, hono/jsx did not isolate context values per request during server-side rendering, allowing createContext, useContext, jsxRenderer, or useRequestContext data from a different in-flight request to be used after an await in an async component. This issue is fixed in version 4.12.27.