CVE-2026-44456 Hono: bodyLimit() can be bypassed for chunked / unknown-length requests

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. Th...

CVE-2026-44456 Hono: bodyLimit() can be bypassed for chunked / unknown-length requests

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. Th...

Hono 资源管理错误漏洞

Hono is a web framework built in TypeScript for the Hono community. Versions of Hono prior to 4.12.16 contained a resource management vulnerability. This vulnerability stemmed from the fact that the bodyLimit function did not reliably enforce the maxSize for requests without an available...

CVE-2026-44456: Uncontrolled Resource Consumption

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. Th...

Allocation of Resources Without Limits or Throttling

Overview org.webjars.npm:hono is an Ultrafast web framework for the Edges Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the bodyLimit function. An attacker can bypass request size restrictions by sending chunked or unknown-length...

HTTP Request Smuggling

Overview org.webjars.npm:hono is an Ultrafast web framework for the Edges Affected versions of this package are vulnerable to HTTP Request Smuggling via the bodyLimit middleware when conflicting HTTP headers are present. An attacker can cause excessive memory or CPU consumption by sending oversiz...

CVE-2025-59139

CVE-2025-59139 affects the Hono web framework (pre-4.9.7). A flaw in the bodyLimit middleware allowed bypassing the configured request body size limit when conflicting headers were present, because Content-Length could be prioritized over Transfer-Encoding: chunked. The HTTP spec requires Transfe...

CVE-2025-59139: Uncontrolled Resource Consumption

Hono is a Web application framework that provides support for any JavaScript runtime. In versions prior to 4.9.7, a flaw in the bodyLimit middleware could allow bypassing the configured request body size limit when conflicting HTTP headers were present. The middleware previously prioritized the...