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CVE-2025-67746— Composer vulnerable to ANSI sequence injection

Quick assessment

Affected
composer composer
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Composer是Composer开源的一个应用软件。提供一个声明，管理和安装PHP项目的依赖项。 Composer 2.2.26之前版本和2.9.3之前版本存在注入漏洞，该漏洞源于攻击者可能注入ANSI控制字符，可能导致终端输出混乱或拒绝服务。

AI Predicted 5.3 Difficulty: Theoretical EPSS 0.45% · P37

Possible ATT&CK Techniques 1 AI

T1562.008
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I. Basic Information for CVE-2025-67746

Vulnerability Information
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Vulnerability Title
Composer vulnerable to ANSI sequence injection
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Composer 注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Composer是Composer开源的一个应用软件。提供一个声明，管理和安装PHP项目的依赖项。 Composer 2.2.26之前版本和2.9.3之前版本存在注入漏洞，该漏洞源于攻击者可能注入ANSI控制字符，可能导致终端输出混乱或拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
composer composer >= 2.0, < 2.2.26 -

II. Public POCs for CVE-2025-67746

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III. Intelligence Information for CVE-2025-67746

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Patches & Fixes for CVE-2025-67746 (2)

Vendor Advisories for CVE-2025-67746 (1)

Other References for CVE-2025-67746 (2)

IV. Related Vulnerabilities

Same product: composer
Same vendor: composer
Same weakness: CWE-74

V. Comments for CVE-2025-67746

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