Is this vulnerability remotely exploitable?

It can be, if a Deno application exposes a remote interface (such as an HTTP API or CLI wrapper) that allows remote users to influence which commands or paths are spawned on a Windows system. Exploitability depends on how much control an attacker has over the spawned process parameters.

What kind of access does an attacker need to exploit this?

An attacker needs the ability to influence the command, path, or script name that Deno spawns—directly or indirectly. This could occur through user-input parameters, configuration files, or any data flow that affects process-spawning APIs on Windows.

What is the safest general fix pattern for developers?

Normalize file extensions and paths before checking them, enforce a strict allowlist of permitted executables, and avoid relying on case-sensitive comparisons on Windows. Treat any user-influenced command spawning as high-risk and wrap it in explicit validation and canonicalization logic.

Severity:

HIGH RISK

(8.1)

Command Injection via Case-Sensitive Extension Check (CWE-77) in Deno Process Spawning on Windows

CVE-2026-22864

Published:

Jan 15, 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-306

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

Account Takeover / Loss of Account Control

February 17, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Remote Code Execution on the Server Host

February 17, 2026

Vulnerability Type

Category:

Command Injection

CWE:

CWE-77

Impact:

Execution of Unintended System Commands on Windows

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

Vulnerability Type

Category:

Command Injection

CWE:

CWE-77

Impact:

Execution of Unintended System Commands on Windows

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

Command Injection via Case-Sensitive Extension Check (CWE-77) in Deno Process Spawning on Windows

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

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Vulnerability Type

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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