CVE-2026-32260 is a critical command injection vulnerability affecting Deno versions 2.7.0 through 2.7.1, specifically within its node:child_process polyfill when shell: true mode is enabled. This flaw stems from a sanitization priority bug that allows double-quoted arguments containing $VAR patterns to enable backtick command substitution, leading to arbitrary OS command execution and bypassing Deno's permission system. Rated 9.8 Critical on CVSS, it has a low attack complexity and requires no user interaction or privileges, presenting a significant risk of complete system compromise. Despite its severity, there is currently no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog. The vulnerability is fixed in Deno version 2.7.2.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 2.7.0, < 2.7.2CPE matchmatch criteria | cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.