# CVE-2026-3479: pkgutil.get_data() does not enforce documented restrictions

CVE-2026-3479 is fixed in 29 products on 2 platforms, first by Python 3.13 3.13.13, released April 7, 2026. 9 other affected products have no fix yet. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-3479
- Priority: Routine
- CVSS: 0.0 (Low)
- EPSS: 0.0025
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 18, 2026
- Weakness: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-3479

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Python 3.13 | 3.13.13 | [Python 3.13 3.13.13](https://patchblox.com/security/data/fix/windows-app/python.python.3.13-3.13.13.md) | Apr 7, 2026 |
| Windows apps | Python 3.14 | 3.14.4 | [Python 3.14 3.14.4](https://patchblox.com/security/data/fix/windows-app/python.python.3.14-3.14.4.md) | Apr 7, 2026 |
| Linux | python sles 15.7 | 2.7.18-150000.114.1 | [SUSE-SU-2026:1365-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1365-1.md) | Apr 15, 2026 |
| Linux | python-base sles 15.7 | 2.7.18-150000.114.1 | [SUSE-SU-2026:1365-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1365-1.md) | Apr 15, 2026 |
| Linux | python-unversioned-command amzn 2023 | 3.9.25-1.amzn2023.0.7 | [ALAS2023-2026-1933](https://patchblox.com/security/data/fix/linux/alas2023-2026-1933.md) | Jul 6, 2026 |
| Linux | python3 amzn 2023 | 3.9.25-1.amzn2023.0.7 | [ALAS2023-2026-1933](https://patchblox.com/security/data/fix/linux/alas2023-2026-1933.md) | Jul 6, 2026 |
| Linux | python3 sles 15.6 | 3.6.15-150300.10.129.1 | [SUSE-SU-2026:4754-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4754-1.md) | Nov 7, 2026 |
| Linux | python3 sles 15.7 | 3.6.15-150300.10.129.1 | [SUSE-SU-2026:4754-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4754-1.md) | Nov 7, 2026 |
| Linux | python3-core sles 15.6 | 3.6.15-150300.10.129.1 | [SUSE-SU-2026:4754-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4754-1.md) | Nov 7, 2026 |
| Linux | python3-core sles 15.7 | 3.6.15-150300.10.129.1 | [SUSE-SU-2026:4754-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4754-1.md) | Nov 7, 2026 |
| Linux | python3-debug amzn 2023 | 3.9.25-1.amzn2023.0.7 | [ALAS2023-2026-1933](https://patchblox.com/security/data/fix/linux/alas2023-2026-1933.md) | Jul 6, 2026 |
| Linux | python3-devel amzn 2023 | 3.9.25-1.amzn2023.0.7 | [ALAS2023-2026-1933](https://patchblox.com/security/data/fix/linux/alas2023-2026-1933.md) | Jul 6, 2026 |
| Linux | python3-idle amzn 2023 | 3.9.25-1.amzn2023.0.7 | [ALAS2023-2026-1933](https://patchblox.com/security/data/fix/linux/alas2023-2026-1933.md) | Jul 6, 2026 |
| Linux | python3-libs amzn 2023 | 3.9.25-1.amzn2023.0.7 | [ALAS2023-2026-1933](https://patchblox.com/security/data/fix/linux/alas2023-2026-1933.md) | Jul 6, 2026 |
| Linux | python3-test amzn 2023 | 3.9.25-1.amzn2023.0.7 | [ALAS2023-2026-1933](https://patchblox.com/security/data/fix/linux/alas2023-2026-1933.md) | Jul 6, 2026 |
| Linux | python3-tkinter amzn 2023 | 3.9.25-1.amzn2023.0.7 | [ALAS2023-2026-1933](https://patchblox.com/security/data/fix/linux/alas2023-2026-1933.md) | Jul 6, 2026 |
| Linux | python3.9-debuginfo amzn 2023 | 3.9.25-1.amzn2023.0.7 | [ALAS2023-2026-1933](https://patchblox.com/security/data/fix/linux/alas2023-2026-1933.md) | Jul 6, 2026 |
| Linux | python3.9-debugsource amzn 2023 | 3.9.25-1.amzn2023.0.7 | [ALAS2023-2026-1933](https://patchblox.com/security/data/fix/linux/alas2023-2026-1933.md) | Jul 6, 2026 |
| Linux | python310 opensuse-leap 15.6 | 3.10.20-150400.4.107.1 | [SUSE-SU-2026:1376-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1376-1.md) | Apr 15, 2026 |
| Linux | python310-core opensuse-leap 15.6 | 3.10.20-150400.4.107.1 | [SUSE-SU-2026:1376-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1376-1.md) | Apr 15, 2026 |
| Linux | python310-documentation opensuse-leap 15.6 | 3.10.20-150400.4.107.1 | [SUSE-SU-2026:1376-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1376-1.md) | Apr 15, 2026 |
| Linux | python311 opensuse-leap 15.6 | 3.11.15-150600.3.53.1 | [SUSE-SU-2026:1349-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1349-1.md) | Apr 15, 2026 |
| Linux | python311 sles 15.6 | 3.11.15-150600.3.53.1 | [SUSE-SU-2026:1349-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1349-1.md) | Apr 15, 2026 |
| Linux | python311 sles 15.7 | 3.11.15-150600.3.53.1 | [SUSE-SU-2026:1349-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1349-1.md) | Apr 15, 2026 |
| Linux | python311-core opensuse-leap 15.6 | 3.11.15-150600.3.53.1 | [SUSE-SU-2026:1349-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1349-1.md) | Apr 15, 2026 |
| Linux | python311-core sles 15.6 | 3.11.15-150600.3.53.1 | [SUSE-SU-2026:1349-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1349-1.md) | Apr 15, 2026 |
| Linux | python311-core sles 15.7 | 3.11.15-150600.3.53.1 | [SUSE-SU-2026:1349-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1349-1.md) | Apr 15, 2026 |
| Linux | python311-documentation opensuse-leap 15.6 | 3.11.15-150600.3.53.1 | [SUSE-SU-2026:1349-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1349-1.md) | Apr 15, 2026 |
| Linux | python312 opensuse-leap 15.6 | 3.12.13-150600.3.53.1 | [SUSE-SU-2026:1292-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1292-1.md) | Apr 13, 2026 |
| Linux | python312 sles 15.6 | 3.12.13-150600.3.53.1 | [SUSE-SU-2026:1292-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1292-1.md) | Apr 13, 2026 |
| Linux | python312-core opensuse-leap 15.6 | 3.12.13-150600.3.53.1 | [SUSE-SU-2026:1292-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1292-1.md) | Apr 13, 2026 |
| Linux | python312-core sles 15.6 | 3.12.13-150600.3.53.1 | [SUSE-SU-2026:1292-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1292-1.md) | Apr 13, 2026 |
| Linux | python312-documentation opensuse-leap 15.6 | 3.12.13-150600.3.53.1 | [SUSE-SU-2026:1292-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1292-1.md) | Apr 13, 2026 |
| Linux | python313 opensuse-leap 16.0 | 3.13.13-160000.1.1 | [OPENSUSE-SU-2026:20517-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20517-1.md) | Apr 13, 2026 |
| Linux | python313 sles 15.7 | 3.13.13-150700.4.45.1 | [SUSE-SU-2026:1354-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1354-1.md) | Apr 15, 2026 |
| Linux | python313 sles 16.0 | 3.13.13-160000.1.1 | [SUSE-SU-2026:21178-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-21178-1.md) | Apr 13, 2026 |
| Linux | python313-core opensuse-leap 16.0 | 3.13.13-160000.1.1 | [OPENSUSE-SU-2026:20517-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20517-1.md) | Apr 13, 2026 |
| Linux | python313-core sles 15.7 | 3.13.13-150700.4.45.1 | [SUSE-SU-2026:1354-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1354-1.md) | Apr 15, 2026 |
| Linux | python313-core sles 16.0 | 3.13.13-160000.1.1 | [SUSE-SU-2026:21178-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-21178-1.md) | Apr 13, 2026 |
| Linux | python313-documentation opensuse-leap 16.0 | 3.13.13-160000.1.1 | [OPENSUSE-SU-2026:20517-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20517-1.md) | Apr 13, 2026 |
| Linux | python313-documentation sles 16.0 | 3.13.13-160000.1.1 | [SUSE-SU-2026:21178-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-21178-1.md) | Apr 13, 2026 |
| Linux | python313-nogil opensuse-leap 16.0 | 3.13.13-160000.1.1 | [OPENSUSE-SU-2026:20517-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20517-1.md) | Apr 13, 2026 |
| Linux | python313-nogil-nogil-core opensuse-leap 16.0 | 3.13.13-160000.1.1 | [OPENSUSE-SU-2026:20517-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20517-1.md) | Apr 13, 2026 |

## No fix yet

| Platform | Product | Status |
|---|---|---|
| Windows apps | Python 2 | no-fix |
| Windows apps | Python 3.10 | no-fix |
| Windows apps | Python 3.11 | no-fix |
| Windows apps | Python 3.12 | no-fix |
| Windows apps | Python 3.5 | no-fix |
| Windows apps | Python 3.6 | no-fix |
| Windows apps | Python 3.7 | no-fix |
| Windows apps | Python 3.8 | no-fix |
| Windows apps | Python 3.9 | no-fix |

---

Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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