CVE-2026-54290

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.25, with credentials: true and no explicit origin the default wildcard, the CORS Middleware reflects the request's Origin and sends Access-Control-Allow-Credentials: true. Any site can then make...

CVE-2026-54289

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.25, on AWS Lambda@Edge, CloudFront delivers a request header that appears more than once as several separate entries. The adapter writes each value with Headers.set instead of Headers.append, so...

CVE-2026-54290

Hono (web framework) prior to 4.12.25 is vulnerable to a CORS misconfiguration: with credentials: true and no explicit origin (default wildcard), the CORS middleware reflects the request Origin and sets Access-Control-Allow-Credentials: true, allowing credentialed cross‑origin reads of cookie‑pro...

CVE-2026-54286

CVE-2026-54286 concerns Hono’s path traversal in the Windows environment via encoded backslash (%5C) in the request path. A prior issue (pre-4.12.25) causes %5C to decode to a backslash, which Windows path resolution treats as a separator, allowing a crafted URL segment (e.g., admin\secret.txt) t...

CVE-2026-54286

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.25, on Windows hosts, an encoded backslash %5C in the request path decodes to , which the Windows path resolver treats as a separator. serve-static then resolves a single URL segment such as...

CVE-2026-54287 Hono: AWS Lambda adapter merges multiple `Set-Cookie` headers into one value, dropping cookies on ALB single-header and Lattice

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.25, on AWS Lambda, the ALB single-header response and the VPC Lattice v2 response join multiple Set-Cookie headers into one comma-separated value. Because commas also appear inside cookie attribute...

CVE-2026-54287

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.25, on AWS Lambda, the ALB single-header response and the VPC Lattice v2 response join multiple Set-Cookie headers into one comma-separated value. Because commas also appear inside cookie attribute...

Insufficient Verification of Data Authenticity

Overview hono is an Ultrafast web framework for the Edges Affected versions of this package are vulnerable to Insufficient Verification of Data Authenticity in the Body Limit Middleware. An attacker can cause the application to process payloads larger than the configured maximum by understating t...

NPM: hono: Body Limit Middleware can be bypassed on AWS Lambda by understating `Content-Length`

NPM: hono: Body Limit Middleware can be bypassed on AWS Lambda by understating Content-Length vulnerability discovered by ? in WordPress Npm hono versions 4.12.25...

Improperly Implemented Security Check for Standard

Overview hono is an Ultrafast web framework for the Edges Affected versions of this package are vulnerable to Improperly Implemented Security Check for Standard in the Lambda@Edge adapter that truncates repeated request headers. An attacker can bypass access restrictions or affect auditing...

NPM: hono: Lambda@Edge adapter keeps only the last value of a repeated request header, dropping the rest

NPM: hono: Lambda@Edge adapter keeps only the last value of a repeated request header, dropping the rest vulnerability discovered by ? in WordPress Npm hono versions 4.12.25...

NPM: hono: AWS Lambda adapter merges multiple `Set-Cookie` headers into one value, dropping cookies on ALB single-header and Lattice

NPM: hono: AWS Lambda adapter merges multiple Set-Cookie headers into one value, dropping cookies on ALB single-header and Lattice vulnerability discovered by ? in WordPress Npm hono versions 4.12.25...