What is the CVSS score of CVE-2026-27190?

CVE-2026-27190 has a CVSS 3.1 base score of 8.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.8%.

Which versions of Deno are affected by CVE-2026-27190?

A critical command injection vulnerability in Deno's child_process implementation (CVE-2026-27190, CVSS 8.1) poses a significant risk to organizations running Deno applications, allowing attackers to…. A patch is available.

Is there a public PoC exploit available for CVE-2026-27190?

Yes, a public proof-of-concept exploit is available for CVE-2026-27190. Prioritise patching immediately. EPSS: 0.8%.

Deno CVE-2026-27190

HIGH

OS Command Injection (CWE-78)

2026-02-20 security-advisories@github.com

GHSA-hmh4-3xvx-q5hr

Command Injection Deno Suse

8.1

CVSS 3.1

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:04 vuln.today

PoC Detected

Mar 02, 2026 - 13:35 vuln.today

Public exploit code

Patch released

Mar 02, 2026 - 13:35 nvd

Patch available

CVE Published

Feb 20, 2026 - 21:19 nvd

HIGH 8.1

DescriptionNVD

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.

AnalysisAI

Command injection in Deno versions prior to 2.6.8 allows unauthenticated remote attackers to execute arbitrary commands through the node:child_process implementation. Public exploit code exists for this vulnerability, which carries a CVSS score of 8.1 and affects the confidentiality, integrity, and availability of affected systems. …

RemediationAI

Within 24 hours: Inventory all systems running Deno versions prior to 2.6.8 and assess exposure in development, testing, and production environments. Within 7 days: Apply Deno patch 2.6.8 or later across all affected systems, beginning with production systems running untrusted or user-supplied input. …

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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CVE-2026-27190 vulnerability details – vuln.today

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Deno CVE-2026-27190

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

RemediationAI

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External POC / Exploit Code