CVE-2026-54298 Astro: XSS via Unescaped Attribute Names in Spread Props

Astro is a web framework. Prior to 6.4.6, the spreadAttributes function in Astro's server-side rendering pipeline iterates over object keys and passes them directly to addAttribute, which interpolates the key into the HTML output without escaping. When a developer uses the spread syntax ...props ...

dotnet: .NET: Local file tampering via link following vulnerability

A flaw was found in .NET's System.Formats.Tar library. When extracting a specially crafted TAR archive containing symbolic links, the TarFile.ExtractToDirectory method may incorrectly follow those links and write files outside the intended extraction directory. An attacker could exploit this issu...

CVE-2026-50146

CVE-2026-50146 affects the Astro web framework prior to 6.3.3. When a component uses a client:* directive, Astro inserts named slot content into a data-astro-template attribute without escaping the slot name, allowing an attacker to break out of the attribute context and inject arbitrary HTML, re...

CVE-2026-50146 Astro: Reflected XSS via unescaped slot name

Astro is a web framework. Prior to 6.3.3, when a component uses a client: directive, Astro inserts named slot content into a data-astro-template attribute without HTML escaping the slot name allowing an attacker to break out of the attribute context and inject arbitrary HTML, resulting in reflect...

CVE-2026-50146

Astro is a web framework. Prior to 6.3.3, when a component uses a client: directive, Astro inserts named slot content into a data-astro-template attribute without HTML escaping the slot name allowing an attacker to break out of the attribute context and inject arbitrary HTML, resulting in reflect...

CVE-2026-50146 Astro: Reflected XSS via unescaped slot name

Astro is a web framework. Prior to 6.3.3, when a component uses a client: directive, Astro inserts named slot content into a data-astro-template attribute without HTML escaping the slot name allowing an attacker to break out of the attribute context and inject arbitrary HTML, resulting in reflect...

CVE-2026-54288

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...

CVE-2026-54288 Hono: Body Limit Middleware can be bypassed on AWS Lambda by understating `Content-Length`

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...

CVE-2026-54288 Hono: Body Limit Middleware can be bypassed on AWS Lambda by understating `Content-Length`

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...

CVE-2026-54288

The CVE-2026-54288 issue affects the Hono Web framework prior to version 4.12.25, where the Body Limit Middleware trusts the request Content-Length header. On AWS Lambda environments (API Gateway v1/v2, ALB, VPC Lattice, and Lambda@Edge), the body is fully buffered and the adapter builds the requ...

CVE-2026-54289 Hono: Lambda@Edge adapter keeps only the last value of a repeated request header, dropping the rest

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-2026-54289

CVE-2026-54289 — Hono Lambda@Edge header handling : On AWS Lambda@Edge, prior to 4.12.25, CloudFront may deliver repeated headers as multiple entries. The Hono Lambda@Edge adapter uses Headers.set for each value, overwriting the previous one, so only the last value reaches the application. Header...

CVE-2026-54289 Hono: Lambda@Edge adapter keeps only the last value of a repeated request header, dropping the rest

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 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-2026-54290 Hono: CORS Middleware reflects any Origin with credentials when `origin` defaults to the wildcard

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-2026-54290

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-2026-54290 Hono: CORS Middleware reflects any Origin with credentials when `origin` defaults to the wildcard

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-2026-54286

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

Summary: Hono’s AWS Lambda adapter, in the ALB single-header mode and VPC Lattice v2, concatenates multiple Set-Cookie headers into a single comma-separated value, causing cookie attributes that include commas (e.g., Expires) to be misparsed or dropped. Affected components: Hono web framework; AW...

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...