CVE-2025-67746

Composer is a dependency manager for PHP. In versions on the 2.x branch prior to 2.2.26 and 2.9.3, attackers controlling remote sources that Composer downloads from might in some way inject ANSI control characters in the terminal output of various Composer commands, causing mangled output and potentially leading to confusion or DoS of the terminal application. There is no proven exploit and this has thus a low severity but we still publish a CVE as it has potential for abuse, and we want to be on the safe side informing users that they should upgrade. Versions 2.2.26 and 2.9.3 contain a patch for the issue.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/composer/composer/commit/1d40a95c9d39a6b7f80d404ab30336c586da9917	Patch
https://github.com/composer/composer/commit/5db1876a76fdef76d3c4f8a27995c434c7a43e71	Patch
https://github.com/composer/composer/releases/tag/2.2.26	Product Release Notes
https://github.com/composer/composer/releases/tag/2.9.3	Product Release Notes
https://github.com/composer/composer/security/advisories/GHSA-59pp-r3rg-353g	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:getcomposer:composer::::::::
	cpe:2.3:a:getcomposer:composer::::::::

History

No history.

Information

Published : 2025-12-30 16:15

Updated : 2026-06-17 09:58

NVD link : CVE-2025-67746

Mitre link : CVE-2025-67746

CVE.ORG link : CVE-2025-67746

JSON object : View

Products Affected

getcomposer

composer

CWE

CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

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En versiones de la rama 2.x anteriores a la 2.2.26 y 2.9.3, atacantes que controlan fuentes remotas de las que Composer descarga podr\u00edan de alguna manera inyectar caracteres de control ANSI en la salida de terminal de varios comandos de Composer, causando una salida distorsionada y potencialmente llevando a confusi\u00f3n o DoS de la aplicaci\u00f3n de terminal. No hay un exploit probado y esto tiene por lo tanto una baja severidad, pero a\u00fan publicamos un CVE ya que tiene potencial de abuso, y queremos estar seguros informando a los usuarios de que deben actualizar. 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