Back to Database
Status published
High
CVE-2021-41116
Command injection in composer on Windows
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-41116
Credits & Attribution
No credits recorded in the NVD database.
References
More from composer
View All →CVE-2025-67746
Composer vulnerable to ANSI sequence injection
Low
1.3
CVE-2024-35242
Composer vulnerable to command injection via malicious git/hg branch names
High
8.8
CVE-2024-35241
Composer vulnerable to command injection via malicious git branch name
High
8.8
CVE-2024-24821
Code execution and possible privilege escalation via compromised InstalledVersions.php or installed.php in Composer
High
8.8
CVE-2023-43655
Remote Code Execution via web-accessible composer.phar
Medium
6.4
Affected Vendor
composer
View all reports →Affected Software
composer
Vulnerable Versions:
< 1.10.23, >= 2.0, < 2.1.9
Timeline
Official Publish:
October 5th, 2021
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N