What is CVE-2026-46338?

CVE-2026-46338 is a medium-severity vulnerability in Facelessuser Pymdown-extensions, classified under Path Traversal. CVSS score: 4.3/10. Published 2026-07-16.

How severe is CVE-2026-46338?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Path Traversal in Facelessuser Pymdown-extensions

CVE-2026-46338

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…

Vulnerability class: Path Traversal (Directory Traversal)

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

Affected products

Facelessuser Pymdown-extensions — versions >= 10.0.1, < 10.21.3

Weakness classification (CWE)

CWE-22 — Path Traversal

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-46338?: CVE-2026-46338 is a medium-severity vulnerability in Facelessuser Pymdown-extensions, classified under Path Traversal. CVSS score: 4.3/10. Published 2026-07-16.
How severe is CVE-2026-46338?: Medium severity. CVSS v3 base score is 4.3 out of 10.