PT-2026-3146

CVE-2026-22864

Published

2026-01-15

Updated

2026-04-14

Description by

CVSS 3.1

9.8

Critical

MetricsAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 case-sensitive comparison. This allowed bypassing the restriction by using alternate casing for the file extension (e.g., .BAT, .Bat). The issue is addressed in version 2.5.6.

Recommendations Update to Deno version 2.5.6 or later.

Exploitability

Exploit

Fix

Impacts

Researchers

Sharokhataie

Vendors

Affected products

Weakness enumeration

CWE-77: Improper Neutralization of Special Elements used in a Command (\'Command Injection\')

Related identifiers