Is this vulnerability remotely exploitable?

Yes, in the sense that an attacker controlling or compromising a Composer repository can remotely influence package metadata consumed by developers or CI systems. When those systems run `composer install` or `composer update` from source, the malicious metadata can trigger command execution.

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

The attacker needs the ability to serve or modify Composer package metadata—typically by publishing a malicious package, compromising an existing package or repository, or man-in-the-middling the metadata distribution path. They do not need direct access to the developer or CI machine.

What is the safest general fix pattern?

The robust fix is to ensure that all shell invocations in the Perforce integration use argument-based process execution (not raw shell strings) and to validate and sanitize all Perforce-related parameters derived from metadata. Any remaining shell usage should rigorously escape special characters and constrain inputs to a safe format.

Severity:

HIGH RISK

(8.8)

Command Injection via Unescaped Shell Parameters (CWE-78) in Composer Perforce Integration

CVE-2026-40261

Published:

Apr 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-74;CWE-89

HIGH RISK

HIGH

(7.3)

SQL Injection via Unsanitized ID Parameter (CWE-89) in Pharmacy Sales and Inventory System /ajax.php

Database Compromise and Data Integrity Loss

April 27, 2026

CWE-863

HIGH RISK

HIGH

(8.5)

Incorrect Authorization (CWE-863) in OpenClaw chat.send Session Management

Privilege Escalation and Unauthorized Session Control

April 27, 2026

Vulnerability Type

Category:

Command Injection

CWE:

CWE-20;CWE-78

Impact:

Arbitrary Command Execution on Developer or CI Environments

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Command Injection

CWE:

CWE-20;CWE-78

Impact:

Arbitrary Command Execution on Developer or CI Environments

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

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355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Command Injection via Unescaped Shell Parameters (CWE-78) in Composer Perforce Integration

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)

SQL Injection via Unsanitized ID Parameter (CWE-89) in Pharmacy Sales and Inventory System /ajax.php

HIGH RISK

HIGH

(8.5)

Incorrect Authorization (CWE-863) in OpenClaw chat.send Session Management

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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