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CVE-2026-46338

4.3 · MEDIUM

PyMdown Extensions is a set of extensions for the Python-Markdown markdown project.

Published Jul 16, 2026CWE-22EPSS 0.40%

Overview

CVE-2026-46338 is a medium-severity vulnerability. It was published on July 16, 2026 and has a CVSS 3.1 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

PyMdown Extensions is a set of extensions for the Python-Markdown markdown project. From 10.0.1 until 10.21.3, pymdownx.snippets uses a string-prefix containment check in SnippetPreprocessor.get_snippet_path() in pymdownx/snippets.py when `restrict_base_path: True`, allowing markdown snippet directives to read files from sibling paths that share the same base_path prefix, such as docs and docs_internal. This is a regression of CVE-2023-32309. This issue is fixed in version 10.21.3.

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/facelessuser/pymdown-extensions/commit/63b7835776d703d6c339cf2110d9888f676efc0cGitHubgithub.com/facelessuser/pymdown-extensions/releases/tag/10.21.3GitHubgithub.com/facelessuser/pymdown-extensions/security/advisories/GHSA-62q4-447f-wv8hGitHubgithub.com/facelessuser/pymdown-extensions/security/advisories/GHSA-62q4-447f-wv8h

How CyberStrike helps

Frequently asked questions

What is CVE-2026-46338?

CVE-2026-46338 is a medium-severity vulnerability. It was published on July 16, 2026 and has a CVSS 3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2026-46338?

This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-46338?

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-2026-46338?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-46338 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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