CVE-2026-59896: medium-severity vulnerability in honojs hono
hono/jsx does not isolate context per request, leading to cross-request data disclosure
Published
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.3%
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Affected products
honojs · honoRelated CVEs — honojs hono
In the same product, most dangerous first.
CVE-2024-32869MEDIUMHono vulnerable to Restricted Directory Traversal in serveStatic with denoEPSS 0.6%CVE-2023-50710MEDIUMHono's named path parameters can be overridden in TrieRouterEPSS 0.6%CVE-2026-69207MEDIUMHono: ReDoS in CORS middleware via Access-Control-Request-HeadersEPSS 0.6%CVE-2026-29045HIGHHono: Arbitrary file access via serveStatic vulnerabilityEPSS 0.6%CVE-2025-58362HIGHHono contains a flaw in URL path parsing, potentially leading to path confusionEPSS 0.6%CVE-2026-84364MEDIUMHono: Unbounded dot-notation nesting in `parseBody()` can cause memory exhaustionEPSS 0.5%