Is this vulnerability remotely exploitable?

It can be, depending on how the application is built. If remote users can influence any input that flows into `node:child_process` calls without strong validation or constraints, the issue may be exploitable over network-facing interfaces such as HTTP APIs or webhooks.

What level of access does an attacker need to exploit this issue?

An attacker must be able to control or significantly influence input that is used to construct commands or arguments in the affected `node:child_process` implementation. This can range from untrusted HTTP parameters, message payloads, and CLI arguments to configuration or environment values that an attacker can modify.

What is the safest general fix pattern for affected applications?

Reduce or eliminate shell-based command execution where possible, and where it is strictly necessary, use APIs that separate the command and its arguments without invoking a shell by default. Apply strict validation and allowlists on all inputs that can affect command names, flags, or paths, and treat any deviation from expected values as an error.

Severity:

HIGH RISK

(8.1)

Command Injection (CWE-78) in Deno node:child_process Implementation

CVE-2026-27190

Published:

Feb 20, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Command Injection

CWE:

CWE-78

Impact:

Arbitrary Command Execution

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

Vulnerability Type

Category:

Command Injection

CWE:

CWE-78

Impact:

Arbitrary Command Execution

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

Command Injection (CWE-78) in Deno node:child_process Implementation

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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