SB2026051516 - Path traversal in pymdown-extensions
Published: May 15, 2026
Security Bulletin ID
SB2026051516
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Path traversal (CVE-ID: CVE-2026-46338)
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to path traversal in SnippetPreprocessor.get_snippet_path() in pymdownx.snippets when processing a markdown snippet directive. A remote attacker can supply a crafted snippet path that traverses to a sibling directory sharing the same base-path prefix to disclose sensitive information.
User interaction is required to process attacker-controlled markdown content, such as in a documentation build pipeline.
Remediation
Install update from vendor's website.