Description
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.11.7, a Cross-Site Scripting (XSS) vulnerability exists in the `ErrorBoundary` component of the hono/jsx library. Under certain usage patterns, untrusted user-controlled strings may be rendered as raw HTML, allowing arbitrary script execution in the victim's browser. Version 4.11.7 patches the issue.
References (2)
Core 2
Core References
Vendor Advisory x_refsource_confirm
https://github.com/honojs/hono/security/advisories/GHSA-9r54-q6cx-xmh5
Patch x_refsource_misc
https://github.com/honojs/hono/commit/2cf60046d730df9fd0aba85178f3ecfe8212d990
Scores
CVSS v3
4.7
EPSS
0.0005
EPSS Percentile
15.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (2)
hono/hono
< 4.11.7
npm/hono
0 - 4.11.7npm
Published
Jan 27, 2026
Tracked Since
Feb 18, 2026