CVE-2025-27607— Python JSON Logger has a Potential RCE via missing `msgspec-python313-pre` dependency
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I. Basic Information for CVE-2025-27607
Vulnerability Information
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Vulnerability Title
Python JSON Logger has a Potential RCE via missing `msgspec-python313-pre` dependency
Source: NVD (National Vulnerability Database)
Vulnerability Description
Python JSON Logger is a JSON Formatter for Python Logging. Between 30 December 2024 and 4 March 2025 Python JSON Logger was vulnerable to RCE through a missing dependency. This occurred because msgspec-python313-pre was deleted by the owner leaving the name open to being claimed by a third party. If the package was claimed, it would allow them RCE on any Python JSON Logger user who installed the development dependencies on Python 3.13 (e.g. pip install python-json-logger[dev]). This issue has been resolved with 3.3.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
从非可信控制范围包含功能例程
Source: NVD (National Vulnerability Database)
Vulnerability Title
Python JSON Logger 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Python JSON Logger是Nicholas Hairs个人开发者的一个 Python 日志的 JSON 格式化工具。 Python JSON Logger 3.3.0之前版本存在安全漏洞，该漏洞源于缺失的依赖可能导致远程代码执行。
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 |
|---|---|---|---|---|
| nhairs | python-json-logger | >= 3.2.0, < 3.3.0 | - |
II. Public POCs for CVE-2025-27607
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | CVE-2025-27607 fix | https://github.com/Barsug/msgspec-python313-pre | POC Details |
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IV. Related Vulnerabilities
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V. Comments for CVE-2025-27607
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