CVE-2026-54288 (GCVE-0-2026-54288)

Vulnerability from cvelistv5 – Published: 2026-06-22 17:18 – Updated: 2026-06-23 16:11
VLAI
Title
Hono: Body Limit Middleware can be bypassed on AWS Lambda by understating `Content-Length`
Summary
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.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-23 14:16 UTC
CWE
  • CWE-345 - Insufficient Verification of Data Authenticity
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7886 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
honojs hono Affected: < 4.12.25
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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