CVE-2025-59139: Hono has Body Limit Middleware Bypass

September 12, 2025

A flaw in the bodyLimit middleware could allow bypassing the configured request body size limit when conflicting HTTP headers were present.

References

github.com/advisories/GHSA-92vj-g62v-jqhh
github.com/honojs/hono
github.com/honojs/hono/commit/605c70560b52f13af10379f79b76717042fafe8d
github.com/honojs/hono/security/advisories/GHSA-92vj-g62v-jqhh
nvd.nist.gov/vuln/detail/CVE-2025-59139

Code Behaviors & Features

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