5.4
Medium
CVE-2026-29086 Hono is a Web application framework that provides support for any JavaScript runtime
Description
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.12.4, the setCookie() utility did not validate semicolons (;), carriage returns (\r), or newline characters (\n) in the domain and path options when constructing the Set-Cookie header. Because cookie attributes are delimited by semicolons, this could allow injection of additional cookie attributes if untrusted input was passed into these fields. This issue has been patched in version 4.12.4.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| hono 4.12 | earliest → < 4.12.4 | 4.12.4 |
Other CVEs of hono
The 48 CVEs of hono →
CVE-2026-111757
Hono is a Web application framework that provides support for any JavaScript runtime
5.3
Medium
CVE-2026-109955
Hono from 4.12.4 before 4.13.11 contains a middleware bypass vulnerability in serveStatic that allows unauthenticated…
6.9
Medium
CVE-2026-93981
hono before 4.13.7 fails to HTML-escape plain strings rendered by hono/jsx as a child or fallback of Suspense, as a…
2.3
Low
CVE-2026-84365
Hono is a Web application framework that provides support for any JavaScript runtime
6.5
Medium