4.8
Medium
CVE-2026-59897 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. From 4.3.3 before 4.12.27, the AWS API Gateway v1 adapter can drop a distinct repeated request header value because it de-duplicates values using a substring comparison instead of an exact match, so middleware or application logic that depends on the complete X-Forwarded-For chain, rate limiting, audit logging, or proxy-chain validation can receive incomplete data. This issue is fixed in version 4.12.27.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| hono 4.3 | 4.3.3 → < 4.12.27 | 4.12.27 |
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