CVE-2026-44456 Details
Description
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.16, bodyLimit() does not reliably enforce maxSize for requests without a usable Content-Length (e.g. Transfer-Encoding: chunked). Oversized requests can reach handlers and return 200 instead of 413. This vulnerability is fixed in 4.12.16.
A vulnerability in the Hono web application framework, prior to version 4.12.16, allows oversized chunked requests to bypass the body size limit enforcement. The issue arises because the bodyLimit() function does not reliably apply maximum size restrictions for requests without a valid Content-Length. As a result, oversized requests can reach the application handlers and receive a 200 response instead of the expected 413 status code for oversized requests.
Users should update to Hono version 4.12.16 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 13, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/honojs/hono/security/advisories/GHSA-9vqf-7f2p-gf9v | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-400 | Uncontrolled Resource Consumption | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| hono hono | < 4.12.16 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 13, 2026 | Initial Analysis | [email protected] |
| May 13, 2026 | New CVE Received | [email protected] |