CVE-2026-22864

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Before 2.5.6, a prior patch aimed to block spawning Windows batch/shell files by returning an error when a spawned path’s extension matched .bat or .cmd. That check performs a case-sensitive comparison against lowercase literals and...

CVE-2026-22864

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Before 2.5.6, a prior patch aimed to block spawning Windows batch/shell files by returning an error when a spawned path’s extension matched .bat or .cmd. That check performs a case-sensitive comparison against lowercase literals and...

CVE-2026-22864 Deno has an incomplete fix for command-injection prevention on Windows — case-insensitive extension bypass

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Before 2.5.6, a prior patch aimed to block spawning Windows batch/shell files by returning an error when a spawned path’s extension matched .bat or .cmd. That check performs a case-sensitive comparison against lowercase literals and...

CVE-2026-22864

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Before 2.5.6, a prior patch aimed to block spawning Windows batch/shell files by returning an error when a spawned path’s extension matched .bat or .cmd. That check performs a case-sensitive comparison against lowercase literals and...

CVE-2026-22864 Deno has an incomplete fix for command-injection prevention on Windows — case-insensitive extension bypass

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Before 2.5.6, a prior patch aimed to block spawning Windows batch/shell files by returning an error when a spawned path’s extension matched .bat or .cmd. That check performs a case-sensitive comparison against lowercase literals and...

CVE-2026-22864

CVE-2026-22864 affects Deno before version 2.5.6. The patch intended to block spawning Windows batch/shell files checked the extension against lowercase .bat/.cmd using a case-sensitive comparison, which can be bypassed by alternate casing (e.g., .BAT/.Bat). This results in a case-insensitive-lik...

CVE-2026-22864 Deno has an incomplete fix for command-injection prevention on Windows — case-insensitive extension bypass

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Before 2.5.6, a prior patch aimed to block spawning Windows batch/shell files by returning an error when a spawned path’s extension matched .bat or .cmd. That check performs a case-sensitive comparison against lowercase literals and...

CVE-2026-22863

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Before 2.6.0, node:crypto doesn't finalize cipher. The vulnerability allows an attacker to have infinite encryptions. This can lead to naive attempts at brute forcing, as well as more refined attacks with the goal to learn the server...

CVE-2026-22863

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Before 2.6.0, node:crypto doesn't finalize cipher. The vulnerability allows an attacker to have infinite encryptions. This can lead to naive attempts at brute forcing, as well as more refined attacks with the goal to learn the server...

CVE-2026-22863

Deno before 2.6.0 is affected: node:crypto does not finalize the cipher, enabling an attacker to generate an unlimited number of encryptions and potentially mount brute‑force/secret‑learning attempts. The issue impacts cryptographic operations that could reveal server secrets; exploitation is des...

CVE-2026-22863 Deno node:crypto doesn't finalize cipher

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Before 2.6.0, node:crypto doesn't finalize cipher. The vulnerability allows an attacker to have infinite encryptions. This can lead to naive attempts at brute forcing, as well as more refined attacks with the goal to learn the server...

CVE-2026-22863 Deno node:crypto doesn't finalize cipher

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Before 2.6.0, node:crypto doesn't finalize cipher. The vulnerability allows an attacker to have infinite encryptions. This can lead to naive attempts at brute forcing, as well as more refined attacks with the goal to learn the server...

CVE-2026-22863 Deno node:crypto doesn't finalize cipher

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Before 2.6.0, node:crypto doesn't finalize cipher. The vulnerability allows an attacker to have infinite encryptions. This can lead to naive attempts at brute forcing, as well as more refined attacks with the goal to learn the server...

Deno command injection vulnerability

Deno is a simple, modern, and secure JavaScript and TypeScript runtime environment developed by Deno itself. Versions of Deno prior to 2.5.6 contained a command injection vulnerability. This vulnerability stemmed from a comparison of file extensions that treated case differences differently, whic...

Deno security vulnerabilities

Deno is a simple, modern, and secure JavaScript and TypeScript runtime environment developed by Deno itself. Versions of Deno prior to 2.6.0 contained a security vulnerability caused by node:crypto failing to perform password encryption properly, which could lead to infinite encryption attacks...

PT-2026-3146

Name of the Vulnerable Software and Affected Versions Deno versions prior to 2.5.6 Description Deno is a JavaScript, TypeScript, and WebAssembly runtime. A previous attempt to prevent the execution of Windows batch and shell files by checking file extensions .bat or .cmd was ineffective due to a...

PT-2026-3145

Name of the Vulnerable Software and Affected Versions Deno versions prior to 2.6.0 Description Deno is a JavaScript, TypeScript, and WebAssembly runtime. A flaw in the node:crypto polyfill allows cryptographic handles to persist beyond their intended lifespan. This results in the possibility of...

CVE-2025-61686 React Router has Path Traversal in File Session Storage

React Router is a router for React. In @react-router/node versions 7.0.0 through 7.9.3, @remix-run/deno prior to version 2.17.2, and @remix-run/node prior to version 2.17.2, if createFileSessionStorage is being used from @react-router/node or @remix-run/node/@remix-run/deno in Remix v2 with an...

CVE-2025-61686 React Router has Path Traversal in File Session Storage

React Router is a router for React. In @react-router/node versions 7.0.0 through 7.9.3, @remix-run/deno prior to version 2.17.2, and @remix-run/node prior to version 2.17.2, if createFileSessionStorage is being used from @react-router/node or @remix-run/node/@remix-run/deno in Remix v2 with an...

CVE-2025-61686 React Router has Path Traversal in File Session Storage

React Router is a router for React. In @react-router/node versions 7.0.0 through 7.9.3, @remix-run/deno prior to version 2.17.2, and @remix-run/node prior to version 2.17.2, if createFileSessionStorage is being used from @react-router/node or @remix-run/node/@remix-run/deno in Remix v2 with an...