CVE-2026-59895

A flaw was found in Hono, a web application framework. The cx function within hono/css improperly handles class names during server-side rendering. This allows an attacker to inject untrusted values into a JSX class attribute, leading to the injection of arbitrary markup. This could result in...

CVE-2026-59896

A flaw was found in Hono, a Web application framework. The hono/jsx component did not properly isolate context values per request during server-side rendering. This allowed data from a different in-flight request to be used after an asynchronous operation in a component. This could lead to...

CVE-2026-53666

A flaw was found in React Router. If an application is configured to allow attacker-supplied input to modify errors during server-side rendering SSR, a remote attacker could trigger unexpected code execution on the client. This execution could lead to an outbound network request, potentially...

Astro SSR - Open Redirect

Astro 5.2.0 through 5.12.7 contains an open redirect caused by improper handling of paths with double slashes in trailing slash redirection logic, letting attackers redirect users to arbitrary external domains, exploit requires on-demand SSR with Node or Cloudflare adapters. id: CVE-2025-54793...

CVE-2026-53666

React Router is a router for React. In versions 6.4.0 through 7.17.0, if application code was written in a way that allows attacker-supplied input to overwrite certain aspects of errors caught by the SSR process, then it was possible for an attacker to trigger unexpected constructor execution on...

CVE-2026-59728

Astro is a web framework for content-driven websites. In versions 1.0.0 through 4.0.18, the source.title and enclosure.type item fields in packages/astro-rss/src/index.ts are interpolated directly into XML template strings without XML-character escaping before being parsed by fast-xml-parser. Bot...

EUVD-2026-49628

React Router is a router for React. In versions 6.4.0 through 7.17.0, if application code was written in a way that allows attacker-supplied input to overwrite certain aspects of errors caught by the SSR process, then it was possible for an attacker to trigger unexpected constructor execution on...

CVE-2026-53666

CVE-2026-53666 affects React Router versions 6.4.0 through 7.17.0 where attacker-supplied input could overwrite parts of errors captured during SSR, enabling arbitrary constructor execution on the client and triggering outbound network requests. This requires specific, unlikely application-layer ...

CVE-2026-53666

React Router is a router for React. In versions 6.4.0 through 7.17.0, if application code was written in a way that allows attacker-supplied input to overwrite certain aspects of errors caught by the SSR process, then it was possible for an attacker to trigger unexpected constructor execution on...

CVE-2026-53666 React Router: Arbitrary Constructor Injection via deserializeErrors() in React Router SSR Hydration

React Router is a router for React. In versions 6.4.0 through 7.17.0, if application code was written in a way that allows attacker-supplied input to overwrite certain aspects of errors caught by the SSR process, then it was possible for an attacker to trigger unexpected constructor execution on...

EUVD-2026-49584

Astro is a web framework for content-driven websites. In versions 1.0.0 through 4.0.18, the source.title and enclosure.type item fields in packages/astro-rss/src/index.ts are interpolated directly into XML template strings without XML-character escaping before being parsed by fast-xml-parser. Bot...

CVE-2026-59728

CVE-2026-59728 (astrojs/rss) affects Astro versions 1.0.0–4.0.18 where source.title and enclosure.type are interpolated into XML without escaping in packages/astro-rss/src/index.ts, then parsed by fast-xml-parser. This allows an attacker-controlled value to inject arbitrary XML into the generated...

Security Bulletin: Multiple vulnerabilities found in IBM ApplinX.

Summary IBM ApplinX has been updated in order to address multiple vulnerabilities CVE-2026-50170, CVE-2026-50171, CVE-2026-54266, CVE-2026-54268, CVE-2026-53404, CVE-2026-55956, CVE-2026-53434, CVE-2026-55276, CVE-2018-1000665, CVE-2026-50557, CVE-2026-54265, CVE-2026-52725, CVE-2026,...

GHSA-337J-9HXR-RHXG React Router: Arbitrary Constructor Injection via deserializeErrors() in React Router SSR Hydration

If application code allows attacker supplied input to overwrite certain aspects of errors caught by the SSR process, then it was possible for attacker to trigger unexpected constructor execution on the client which would trigger outbound network traffic. This is only possible with very specific a...

Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')

Overview Affected versions of this package are vulnerable to Use of Externally-Controlled Input to Select Classes or Code 'Unsafe Reflection' in the deserializeErrors function during SSR hydration. An attacker can cause unexpected constructor execution on the client, potentially resulting in...

NPM: React Router: Arbitrary Constructor Injection via deserializeErrors() in React Router SSR Hydration

NPM: React Router: Arbitrary Constructor Injection via deserializeErrors in React Router SSR Hydration vulnerability discovered by ? in WordPress Npm react-router versions = 6.4.0, 7.18.0...

PT-2026-64212

Name of the Vulnerable Software and Affected Versions React Router versions 6.4.0 through 7.17.0 Description In Framework Mode and Data Mode applications performing manual SSR Server-Side Rendering, a flaw exists where attacker-supplied input can overwrite specific aspects of errors caught during...

EUVD-2026-42326

hono/jsx does not isolate context per request, leading to cross-request data disclosure...

GHSA-HVRM-45R6-MJFJ hono/jsx does not isolate context per request, leading to cross-request data disclosure

Summary hono/jsx did not isolate context values per request during server-side rendering. While an async component was suspended on await, its provided context value stayed observable to other requests rendering concurrently, so useContext could return a value from a different in-flight request...

hono/jsx does not isolate context per request, leading to cross-request data disclosure

Summary hono/jsx did not isolate context values per request during server-side rendering. While an async component was suspended on await, its provided context value stayed observable to other requests rendering concurrently, so useContext could return a value from a different in-flight request...