Name: CVE-2021-41116: Improper Neutralization of Special Elements used in a Command
Creator: Rapid7
Published: 2021-10-05T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2021-41116, CWE-77, CVSS 8.2, EPSS 0.02825

Composer is an open source dependency manager for the PHP language. In affected versions windows users running Composer to install untrusted dependencies are subject to command injection and should upgrade their composer version. Other OSs and WSL are not affected. The issue has been resolved in composer versions 1.10.23 and 2.1.9. There are no workarounds for this issue.

CVSS Details

CVSS 3.1 Base Score: 8.2
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alpine Linux	—	Upgrade composer	Aug 22, 2024	Oct 5, 2021
Suse	—	Upgrade php-composer	Oct 26, 2022	Oct 5, 2021
Ubuntu	—	No solution exists	Jun 26, 2025	Oct 5, 2021

Prioritise with Active Threat Intelligence

With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.

Explore Intelligence Hub

MDR Buyer's Guide

Global Threat Landscape Report

Grow your business

CVSS Details

Covered by Rapid7

Prioritise with Active Threat Intelligence