Description

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 therefore can be bypassed when the extension uses alternate casing (for example .BAT, .Bat, etc.). This vulnerability is fixed in 2.5.6.

INFO

Published Date :

2026-01-15T22:58:52.463Z

Last Modified :

2026-01-16T17:16:02.143Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-22864 vulnerability.

Vendors Products
Deno
  • Deno
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-22864.

URL Resource
https://github.com/denoland/deno/releases/tag/v2.5.6 cve-icon cve-icon
https://github.com/denoland/deno/security/advisories/GHSA-m3c4-prhw-mrx6 cve-icon cve-icon
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