CVE-2026-3479
pkgutil.get_data() does not enforce documented restrictions
- State
- Published
- Severity
- 0.0 None
- Published
- Mar 18, 2026
- Updated
- Apr 7, 2026
- Reserved
- Mar 3, 2026
Description
DISPUTED: The project has clarified that the documentation was incorrect, and that pkgutil.get_data() has the same security model as open(). The documentation has been updated to clarify this point. There is no vulnerability in the function if following the intended security model.
pkgutil.get_data() did not validate the resource argument as documented, allowing path traversals.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 0.0 None | CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N | PSF |
Weaknesses
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Products
| Product | Versions |
|---|---|
CPythonPython Software Foundation |
|
References
- https://github.com/python/cpython/pull/146122patch
- https://mail.python.org/archives/list/security-announce@python.org/thread/WYLLVQOOCKGK73JM7Z7ZSNOJC4N7BAWY/vendor-advisory
- https://github.com/python/cpython/issues/146121issue-tracking
- https://github.com/python/cpython/commit/bcdf231946b1da8bdfbab4c05539bb0cc964a1c7patch
- https://github.com/python/cpython/commit/5af6ce3e7b643a30a02d22245c1e3f4a8bc0a1fepatch
- https://github.com/python/cpython/commit/cf59bf76470f3d75ad47d80ffb8ce76b64b5e943patch
- https://github.com/python/cpython/commit/d786d59a8f7196bb630100a869f28ad13436b59cpatch
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