CVE-2026-22864

HIGH

8.1

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.18.1

SeveridadeHIGH

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

Vetor de ataqueNETWORK

ComplexidadeHIGH

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado1/15/2026

Ultima modificacao1/21/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

deno:deno

Fraquezas (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)

Correlacoes IOC

Sem correlacoes registradas

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