CVE-2026-22864

HIGH

8.1

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.18.1

SeveridadHIGH

Vector CVSSCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Vector de ataqueNETWORK

ComplejidadHIGH

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado1/15/2026

Ultima modificacion1/21/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

deno:deno

Debilidades (CWE)

CWE-77

Referencias

https://github.com/denoland/deno/releases/tag/v2.5.6(security-advisories@github.com)

https://github.com/denoland/deno/security/advisories/GHSA-m3c4-prhw-mrx6(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

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