CVE-2025-64343— (conda) Constructor: Excessive permissions during and after installation
Quick assessment
Affected
conda constructor
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Conda Constructor是Conda开源的一个从conda包创建安装程序的工具。 Conda Constructor 3.12.2及之前版本存在安全漏洞，该漏洞源于安装目录继承父目录权限，可能导致本地攻击者进行修改操作。
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2025-64343
Vulnerability Information
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Vulnerability Title
(conda) Constructor: Excessive permissions during and after installation
Source: CVE Program / CVE List V5
Vulnerability Description
(conda) Constructor is a tool that enables users to create installers for conda package collections. In versions 3.12.2 and below, the installation directory inherits permissions from its parent directory. Outside of restricted directories, the permissions are very permissive and often allow write access by authenticated users. Any logged in user can make modifications during the installation for both single-user and all-user installations. This constitutes a local attack vector if the installation is in a directory local users have access to. For single-user installations in a shared directory, these permissions persist after the installation. This issue is fixed in version 3.13.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用候选名称进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
Conda Constructor 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Conda Constructor是Conda开源的一个从conda包创建安装程序的工具。 Conda Constructor 3.12.2及之前版本存在安全漏洞，该漏洞源于安装目录继承父目录权限，可能导致本地攻击者进行修改操作。
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 |
|---|---|---|---|---|
| conda | constructor | < 3.13.0 | - |
|
II. Public POCs for CVE-2025-64343
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Qwen3.6-35B-A3B
· 8405 chars
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III. Intelligence Information for CVE-2025-64343
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Vendor Advisories for CVE-2025-64343 (1)
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V. Comments for CVE-2025-64343
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