CVE-2026-59896
MEDIUMhono/jsx does not isolate context per request, leading to cross-request data disclosure
Title source: cnaDescription
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.
References (3)
Core 3
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/honojs/hono/security/advisories/GHSA-hvrm-45r6-mjfj
X_Refsource_Misc x_refsource_misc
https://github.com/honojs/hono/commit/fab3b13639339cbd5ba1166a5b23d9ac30c5f64f
X_Refsource_Misc x_refsource_misc
https://github.com/honojs/hono/releases/tag/v4.12.27
Scores
CVSS v3
6.5
EPSS
0.0019
EPSS Percentile
9.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-362
Status
published
Products (3)
hono/hono
4.11.8 - 4.12.27
honojs/hono
>= 4.11.8, < 4.12.27
npm/hono
4.11.8 - 4.12.27npm
Published
Jul 08, 2026
Tracked Since
Jul 08, 2026