CVE-2026-46338
Publication date 17 July 2026
Last updated 17 July 2026
Ubuntu priority
Cvss 3 Severity Score
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| pymdown-extensions | 26.04 LTS resolute |
Needs evaluation
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy | Not in release |
Severity score breakdown
CVSS version: CVSS v3.0
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
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-46338
- https://github.com/facelessuser/pymdown-extensions/commit/63b7835776d703d6c339cf2110d9888f676efc0c
- https://github.com/facelessuser/pymdown-extensions/releases/tag/10.21.3
- https://github.com/facelessuser/pymdown-extensions/security/advisories/GHSA-62q4-447f-wv8h