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CVE-2025-27607

8.8 · HIGH

Python JSON Logger is a JSON Formatter for Python Logging.

Published Mar 7, 2025CWE-829EPSS 1.61%

Overview

CVE-2025-27607 is a high-severity vulnerability. It was published on March 7, 2025 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/nhairs/python-json-logger/commit/2548e3a2e3cedf6bef3ee7c60c55b7c02d1af11aGitHubgithub.com/nhairs/python-json-logger/commit/e7761e56edb980cfab0165e32469d5fd017a5d72GitHubgithub.com/nhairs/python-json-logger/security/advisories/GHSA-wmxh-pxcx-9w24GitHubgithub.com/nhairs/python-json-logger/security/advisories/GHSA-wmxh-pxcx-9w24

How CyberStrike helps

Frequently asked questions

What is CVE-2025-27607?

CVE-2025-27607 is a high-severity vulnerability. It was published on March 7, 2025 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-27607?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-27607?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-27607?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-27607 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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