CVE-2026-27190

Deno has a Command Injection via Incomplete shell metacharacter blocklist in node:child_process

Published Feb 20, 2026 CVSS 3.1 · 8.1 High EPSS 2.5% KEV · Not listed
Description
Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to 2.6.8, a command injection vulnerability exists in Deno's node:child_process implementation. This vulnerability is fixed in 2.6.8.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-hmh4-3xvx-q5hr Deno has a Command Injection via Incomplete shell metacharacter blocklist in node:child_process
History
Type Values Removed Values Added
CPEs cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Deno
Deno deno
Vendors & Products Deno
Deno deno
Type Values Removed Values Added
Description Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to 2.6.8, a command injection vulnerability exists in Deno's node:child_process implementation. This vulnerability is fixed in 2.6.8.
Title Deno has a Command Injection via Incomplete shell metacharacter blocklist in node:child_process
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Feb 24, 2026, 6:30 PM
Reserved
Feb 18, 2026, 7:47 PM
Status
Analyzed
Published
Feb 20, 2026, 9:19 PM
Modified
Jun 17, 2026, 10:26 AM