CVE-2025-27607
Last modified
CVE-2025-27607 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 1.45% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Nhairs | Python Json Logger | < 3.3.0 |
References
- https://github.com/nhairs/python-json-logger/security/advisories/GHSA-wmxh-pxcx-9w24Exploit, Vendor Advisory
- https://github.com/nhairs/python-json-logger/security/advisories/GHSA-wmxh-pxcx-9w24Exploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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