# CVE-2026-82049: tarfile extraction filters allow file modification and content disclosure via hard link to symlink

CVE-2026-82049 is fixed in 41 products on 3 platforms, first by DEBIAN-CVE-2026-82049, released September 14, 2026. 10 other affected products have no fix yet. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-82049
- Priority: High
- CVSS: 8.4 (Moderate)
- EPSS: 0.0019
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 14, 2026
- Weakness: Improper Link Resolution Before File Access ('Link Following')
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-82049

## Description

In CPython 3.13 and earlier, the tarfile module's data and tar extraction filters are vulnerable to crafted archives containing a hard link to a symbolic link. Such archives may cause extraction to modify the permissions or modification time of a file outside the destination directory, or expose the contents of that file within the extracted tree.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Python 3.13 | 3.13.16 | [Python 3.13 3.13.16](https://patchblox.com/security/data/fix/windows-app/python.python.3.13-3.13.16.md) | Sep 30, 2026 |
| Linux | pypy3 Debian 14 | 8.0.1+dfsg-1 | [DEBIAN-CVE-2026-82049](https://patchblox.com/security/data/fix/linux/debian-cve-2026-82049.md) | Sep 14, 2026 |
| Linux | python sles 15.7 | 2.7.18-150000.136.1 | [SUSE-SU-2026:4738-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4738-1.md) | Nov 7, 2026 |
| Linux | python-base sles 15.7 | 2.7.18-150000.136.1 | [SUSE-SU-2026:4738-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4738-1.md) | Nov 7, 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 | python3.11 amzn 2023 | 3.11.17-1.amzn2023.0.1 | [ALAS2023-2026-3231](https://patchblox.com/security/data/fix/linux/alas2023-2026-3231.md) | Nov 7, 2026 |
| Linux | python3.11-debug amzn 2023 | 3.11.17-1.amzn2023.0.1 | [ALAS2023-2026-3231](https://patchblox.com/security/data/fix/linux/alas2023-2026-3231.md) | Nov 7, 2026 |
| Linux | python3.11-debuginfo amzn 2023 | 3.11.17-1.amzn2023.0.1 | [ALAS2023-2026-3231](https://patchblox.com/security/data/fix/linux/alas2023-2026-3231.md) | Nov 7, 2026 |
| Linux | python3.11-debugsource amzn 2023 | 3.11.17-1.amzn2023.0.1 | [ALAS2023-2026-3231](https://patchblox.com/security/data/fix/linux/alas2023-2026-3231.md) | Nov 7, 2026 |
| Linux | python3.11-devel amzn 2023 | 3.11.17-1.amzn2023.0.1 | [ALAS2023-2026-3231](https://patchblox.com/security/data/fix/linux/alas2023-2026-3231.md) | Nov 7, 2026 |
| Linux | python3.11-idle amzn 2023 | 3.11.17-1.amzn2023.0.1 | [ALAS2023-2026-3231](https://patchblox.com/security/data/fix/linux/alas2023-2026-3231.md) | Nov 7, 2026 |
| Linux | python3.11-libs amzn 2023 | 3.11.17-1.amzn2023.0.1 | [ALAS2023-2026-3231](https://patchblox.com/security/data/fix/linux/alas2023-2026-3231.md) | Nov 7, 2026 |
| Linux | python3.11-test amzn 2023 | 3.11.17-1.amzn2023.0.1 | [ALAS2023-2026-3231](https://patchblox.com/security/data/fix/linux/alas2023-2026-3231.md) | Nov 7, 2026 |
| Linux | python3.11-tkinter amzn 2023 | 3.11.17-1.amzn2023.0.1 | [ALAS2023-2026-3231](https://patchblox.com/security/data/fix/linux/alas2023-2026-3231.md) | Nov 7, 2026 |
| Linux | python3.12 amzn 2023 | 3.12.15-2.amzn2023.0.1 | [ALAS2023-2026-3230](https://patchblox.com/security/data/fix/linux/alas2023-2026-3230.md) | Nov 7, 2026 |
| Linux | python3.12-debug amzn 2023 | 3.12.15-2.amzn2023.0.1 | [ALAS2023-2026-3230](https://patchblox.com/security/data/fix/linux/alas2023-2026-3230.md) | Nov 7, 2026 |
| Linux | python3.12-debuginfo amzn 2023 | 3.12.15-2.amzn2023.0.1 | [ALAS2023-2026-3230](https://patchblox.com/security/data/fix/linux/alas2023-2026-3230.md) | Nov 7, 2026 |
| Linux | python3.12-debugsource amzn 2023 | 3.12.15-2.amzn2023.0.1 | [ALAS2023-2026-3230](https://patchblox.com/security/data/fix/linux/alas2023-2026-3230.md) | Nov 7, 2026 |
| Linux | python3.12-devel amzn 2023 | 3.12.15-2.amzn2023.0.1 | [ALAS2023-2026-3230](https://patchblox.com/security/data/fix/linux/alas2023-2026-3230.md) | Nov 7, 2026 |
| Linux | python3.12-idle amzn 2023 | 3.12.15-2.amzn2023.0.1 | [ALAS2023-2026-3230](https://patchblox.com/security/data/fix/linux/alas2023-2026-3230.md) | Nov 7, 2026 |
| Linux | python3.12-libs amzn 2023 | 3.12.15-2.amzn2023.0.1 | [ALAS2023-2026-3230](https://patchblox.com/security/data/fix/linux/alas2023-2026-3230.md) | Nov 7, 2026 |
| Linux | python3.12-test amzn 2023 | 3.12.15-2.amzn2023.0.1 | [ALAS2023-2026-3230](https://patchblox.com/security/data/fix/linux/alas2023-2026-3230.md) | Nov 7, 2026 |
| Linux | python3.12-tkinter amzn 2023 | 3.12.15-2.amzn2023.0.1 | [ALAS2023-2026-3230](https://patchblox.com/security/data/fix/linux/alas2023-2026-3230.md) | Nov 7, 2026 |
| Linux | python3.13 amzn 2023 | 3.13.16-1.amzn2023.0.1 | [ALAS2023-2026-3229](https://patchblox.com/security/data/fix/linux/alas2023-2026-3229.md) | Nov 7, 2026 |
| Linux | python3.13-debug amzn 2023 | 3.13.16-1.amzn2023.0.1 | [ALAS2023-2026-3229](https://patchblox.com/security/data/fix/linux/alas2023-2026-3229.md) | Nov 7, 2026 |
| Linux | python3.13-debuginfo amzn 2023 | 3.13.16-1.amzn2023.0.1 | [ALAS2023-2026-3229](https://patchblox.com/security/data/fix/linux/alas2023-2026-3229.md) | Nov 7, 2026 |
| Linux | python3.13-debugsource amzn 2023 | 3.13.16-1.amzn2023.0.1 | [ALAS2023-2026-3229](https://patchblox.com/security/data/fix/linux/alas2023-2026-3229.md) | Nov 7, 2026 |
| Linux | python3.13-devel amzn 2023 | 3.13.16-1.amzn2023.0.1 | [ALAS2023-2026-3229](https://patchblox.com/security/data/fix/linux/alas2023-2026-3229.md) | Nov 7, 2026 |
| Linux | python3.13-freethreading amzn 2023 | 3.13.16-1.amzn2023.0.1 | [ALAS2023-2026-3229](https://patchblox.com/security/data/fix/linux/alas2023-2026-3229.md) | Nov 7, 2026 |
| Linux | python3.13-freethreading-debug amzn 2023 | 3.13.16-1.amzn2023.0.1 | [ALAS2023-2026-3229](https://patchblox.com/security/data/fix/linux/alas2023-2026-3229.md) | Nov 7, 2026 |
| Linux | python3.13-idle amzn 2023 | 3.13.16-1.amzn2023.0.1 | [ALAS2023-2026-3229](https://patchblox.com/security/data/fix/linux/alas2023-2026-3229.md) | Nov 7, 2026 |
| Linux | python3.13-libs amzn 2023 | 3.13.16-1.amzn2023.0.1 | [ALAS2023-2026-3229](https://patchblox.com/security/data/fix/linux/alas2023-2026-3229.md) | Nov 7, 2026 |
| Linux | python3.13-test amzn 2023 | 3.13.16-1.amzn2023.0.1 | [ALAS2023-2026-3229](https://patchblox.com/security/data/fix/linux/alas2023-2026-3229.md) | Nov 7, 2026 |
| Linux | python3.13-tkinter amzn 2023 | 3.13.16-1.amzn2023.0.1 | [ALAS2023-2026-3229](https://patchblox.com/security/data/fix/linux/alas2023-2026-3229.md) | Nov 7, 2026 |
| Linux | python311 sles 15.6 | 3.11.17-150600.3.74.1 | [SUSE-SU-2026:4946-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4946-1.md) | Nov 7, 2026 |
| Linux | python311 sles 15.7 | 3.11.17-150600.3.74.1 | [SUSE-SU-2026:4946-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4946-1.md) | Nov 7, 2026 |
| Linux | python311-core sles 15.6 | 3.11.17-150600.3.74.1 | [SUSE-SU-2026:4946-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4946-1.md) | Nov 7, 2026 |
| Linux | python311-core sles 15.7 | 3.11.17-150600.3.74.1 | [SUSE-SU-2026:4946-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4946-1.md) | Nov 7, 2026 |
| Linux | python312 sles 15.6 | 3.12.15-150600.3.71.1 | [SUSE-SU-2026:4659-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4659-1.md) | Nov 7, 2026 |
| Linux | python312-core sles 15.6 | 3.12.15-150600.3.71.1 | [SUSE-SU-2026:4659-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4659-1.md) | Nov 7, 2026 |
| Linux | python313 sles 15.7 | 3.13.16-150700.4.61.1 | [SUSE-SU-2026:4941-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4941-1.md) | Nov 7, 2026 |
| Linux | python313-core sles 15.7 | 3.13.16-150700.4.61.1 | [SUSE-SU-2026:4941-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4941-1.md) | Nov 7, 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 |
| macOS | Python3 | no-fix |

---

Data as of 2026-11-08T13:06:02Z 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

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

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