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NVD description
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.25, the Body Limit Middleware trusts the request's Content-Length header to decide whether a body is within the limit. On AWS Lambda (API Gateway v1/v2, ALB, VPC Lattice, and Lambda@Edge) the body is delivered fully buffered and the adapter builds the request with the client-declared Content-Length, which need not match the actual payload. A client can declare a tiny Content-Length while sending a much larger body, slipping past the limit. This vulnerability is fixed in 4.12.25.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
CVE-2026-54288 Body Limit Middleware Bypass in Hono Web Framework Prior to 4.12.25 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-54288
Post summary
The post announces the discovery of a Body Limit Middleware Bypass in Hono Web Framework versions before 4.12.25, but does not include any PoC, exploit, patch, or active exploitation details.