# CVE-2026-7210: The expat and elementtree parsers use insufficient entropy for XML hash-flooding protection

CVE-2026-7210 is fixed in 75 products on 3 platforms, first by DEBIAN-CVE-2026-7210, released May 11, 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-2026-7210
- Priority: High
- CVSS: 7.5 (Low)
- EPSS: 0.0067
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 11, 2026
- Weakness: Insufficient Entropy
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-7210

## Description

`xml.parsers.expat` and `xml.etree.ElementTree` use insufficient entropy for Expat hash-flooding protection, which allows a crafted XML document to trigger hash flooding.\r\n\r\nFully mitigating this vulnerability requires both updating libexpat to 2.8.0 or later and applying this patch.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Python 3.13 | 3.13.14 | [Python 3.13 3.13.14](https://patchblox.com/security/data/fix/windows-app/python.python.3.13-3.13.14.md) | Jun 10, 2026 |
| Windows apps | Python 3.14 | 3.14.6 | [Python 3.14 3.14.6](https://patchblox.com/security/data/fix/windows-app/python.python.3.14-3.14.6.md) | Jun 10, 2026 |
| Linux | python sles 15.7 | 2.7.18-150000.123.1 | [SUSE-SU-2026:3635-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3635-1.md) | Aug 18, 2026 |
| Linux | python-base sles 15.7 | 2.7.18-150000.123.1 | [SUSE-SU-2026:3635-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3635-1.md) | Aug 18, 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 | python3.10 Fedora 43 | 3.10.22-1.fc43 | [FEDORA-2026-AB6004EC50](https://patchblox.com/security/data/fix/linux/fedora-2026-ab6004ec50.md) | Oct 2, 2026 |
| Linux | python3.10-debug Fedora 43 | 3.10.22-1.fc43 | [FEDORA-2026-AB6004EC50](https://patchblox.com/security/data/fix/linux/fedora-2026-ab6004ec50.md) | Oct 2, 2026 |
| Linux | python3.10-debuginfo Fedora 43 | 3.10.22-1.fc43 | [FEDORA-2026-AB6004EC50](https://patchblox.com/security/data/fix/linux/fedora-2026-ab6004ec50.md) | Oct 2, 2026 |
| Linux | python3.10-debugsource Fedora 43 | 3.10.22-1.fc43 | [FEDORA-2026-AB6004EC50](https://patchblox.com/security/data/fix/linux/fedora-2026-ab6004ec50.md) | Oct 2, 2026 |
| Linux | python3.10-devel Fedora 43 | 3.10.22-1.fc43 | [FEDORA-2026-AB6004EC50](https://patchblox.com/security/data/fix/linux/fedora-2026-ab6004ec50.md) | Oct 2, 2026 |
| Linux | python3.10-idle Fedora 43 | 3.10.22-1.fc43 | [FEDORA-2026-AB6004EC50](https://patchblox.com/security/data/fix/linux/fedora-2026-ab6004ec50.md) | Oct 2, 2026 |
| Linux | python3.10-libs Fedora 43 | 3.10.22-1.fc43 | [FEDORA-2026-AB6004EC50](https://patchblox.com/security/data/fix/linux/fedora-2026-ab6004ec50.md) | Oct 2, 2026 |
| Linux | python3.10-test Fedora 43 | 3.10.22-1.fc43 | [FEDORA-2026-AB6004EC50](https://patchblox.com/security/data/fix/linux/fedora-2026-ab6004ec50.md) | Oct 2, 2026 |
| Linux | python3.10-tkinter Fedora 43 | 3.10.22-1.fc43 | [FEDORA-2026-AB6004EC50](https://patchblox.com/security/data/fix/linux/fedora-2026-ab6004ec50.md) | Oct 2, 2026 |
| Linux | python3.11 amzn 2023 | 3.11.15-1.amzn2023.0.3 | [ALAS2023-2026-1930](https://patchblox.com/security/data/fix/linux/alas2023-2026-1930.md) | Jul 6, 2026 |
| Linux | python3.11-debug amzn 2023 | 3.11.15-1.amzn2023.0.3 | [ALAS2023-2026-1930](https://patchblox.com/security/data/fix/linux/alas2023-2026-1930.md) | Jul 6, 2026 |
| Linux | python3.11-debuginfo amzn 2023 | 3.11.15-1.amzn2023.0.3 | [ALAS2023-2026-1930](https://patchblox.com/security/data/fix/linux/alas2023-2026-1930.md) | Jul 6, 2026 |
| Linux | python3.11-debugsource amzn 2023 | 3.11.15-1.amzn2023.0.3 | [ALAS2023-2026-1930](https://patchblox.com/security/data/fix/linux/alas2023-2026-1930.md) | Jul 6, 2026 |
| Linux | python3.11-devel amzn 2023 | 3.11.15-1.amzn2023.0.3 | [ALAS2023-2026-1930](https://patchblox.com/security/data/fix/linux/alas2023-2026-1930.md) | Jul 6, 2026 |
| Linux | python3.11-idle amzn 2023 | 3.11.15-1.amzn2023.0.3 | [ALAS2023-2026-1930](https://patchblox.com/security/data/fix/linux/alas2023-2026-1930.md) | Jul 6, 2026 |
| Linux | python3.11-libs amzn 2023 | 3.11.15-1.amzn2023.0.3 | [ALAS2023-2026-1930](https://patchblox.com/security/data/fix/linux/alas2023-2026-1930.md) | Jul 6, 2026 |
| Linux | python3.11-test amzn 2023 | 3.11.15-1.amzn2023.0.3 | [ALAS2023-2026-1930](https://patchblox.com/security/data/fix/linux/alas2023-2026-1930.md) | Jul 6, 2026 |
| Linux | python3.11-tkinter amzn 2023 | 3.11.15-1.amzn2023.0.3 | [ALAS2023-2026-1930](https://patchblox.com/security/data/fix/linux/alas2023-2026-1930.md) | Jul 6, 2026 |
| Linux | python3.12 amzn 2023 | 3.12.13-2.amzn2023.0.3 | [ALAS2023-2026-1931](https://patchblox.com/security/data/fix/linux/alas2023-2026-1931.md) | Jul 6, 2026 |
| Linux | python3.12-debug amzn 2023 | 3.12.13-2.amzn2023.0.3 | [ALAS2023-2026-1931](https://patchblox.com/security/data/fix/linux/alas2023-2026-1931.md) | Jul 6, 2026 |
| Linux | python3.12-debuginfo amzn 2023 | 3.12.13-2.amzn2023.0.3 | [ALAS2023-2026-1931](https://patchblox.com/security/data/fix/linux/alas2023-2026-1931.md) | Jul 6, 2026 |
| Linux | python3.12-debugsource amzn 2023 | 3.12.13-2.amzn2023.0.3 | [ALAS2023-2026-1931](https://patchblox.com/security/data/fix/linux/alas2023-2026-1931.md) | Jul 6, 2026 |
| Linux | python3.12-devel amzn 2023 | 3.12.13-2.amzn2023.0.3 | [ALAS2023-2026-1931](https://patchblox.com/security/data/fix/linux/alas2023-2026-1931.md) | Jul 6, 2026 |
| Linux | python3.12-idle amzn 2023 | 3.12.13-2.amzn2023.0.3 | [ALAS2023-2026-1931](https://patchblox.com/security/data/fix/linux/alas2023-2026-1931.md) | Jul 6, 2026 |
| Linux | python3.12-libs amzn 2023 | 3.12.13-2.amzn2023.0.3 | [ALAS2023-2026-1931](https://patchblox.com/security/data/fix/linux/alas2023-2026-1931.md) | Jul 6, 2026 |
| Linux | python3.12-test amzn 2023 | 3.12.13-2.amzn2023.0.3 | [ALAS2023-2026-1931](https://patchblox.com/security/data/fix/linux/alas2023-2026-1931.md) | Jul 6, 2026 |
| Linux | python3.12-tkinter amzn 2023 | 3.12.13-2.amzn2023.0.3 | [ALAS2023-2026-1931](https://patchblox.com/security/data/fix/linux/alas2023-2026-1931.md) | Jul 6, 2026 |
| Linux | python3.13 amzn 2023 | 3.13.14-1.amzn2023.0.1 | [ALAS2023-2026-1910](https://patchblox.com/security/data/fix/linux/alas2023-2026-1910.md) | Jul 6, 2026 |
| Linux | python3.13-debug amzn 2023 | 3.13.14-1.amzn2023.0.1 | [ALAS2023-2026-1910](https://patchblox.com/security/data/fix/linux/alas2023-2026-1910.md) | Jul 6, 2026 |
| Linux | python3.13-debuginfo amzn 2023 | 3.13.14-1.amzn2023.0.1 | [ALAS2023-2026-1910](https://patchblox.com/security/data/fix/linux/alas2023-2026-1910.md) | Jul 6, 2026 |
| Linux | python3.13-debugsource amzn 2023 | 3.13.14-1.amzn2023.0.1 | [ALAS2023-2026-1910](https://patchblox.com/security/data/fix/linux/alas2023-2026-1910.md) | Jul 6, 2026 |
| Linux | python3.13-devel amzn 2023 | 3.13.14-1.amzn2023.0.1 | [ALAS2023-2026-1910](https://patchblox.com/security/data/fix/linux/alas2023-2026-1910.md) | Jul 6, 2026 |
| Linux | python3.13-freethreading amzn 2023 | 3.13.14-1.amzn2023.0.1 | [ALAS2023-2026-1910](https://patchblox.com/security/data/fix/linux/alas2023-2026-1910.md) | Jul 6, 2026 |
| Linux | python3.13-freethreading-debug amzn 2023 | 3.13.14-1.amzn2023.0.1 | [ALAS2023-2026-1910](https://patchblox.com/security/data/fix/linux/alas2023-2026-1910.md) | Jul 6, 2026 |
| Linux | python3.13-idle amzn 2023 | 3.13.14-1.amzn2023.0.1 | [ALAS2023-2026-1910](https://patchblox.com/security/data/fix/linux/alas2023-2026-1910.md) | Jul 6, 2026 |
| Linux | python3.13-libs amzn 2023 | 3.13.14-1.amzn2023.0.1 | [ALAS2023-2026-1910](https://patchblox.com/security/data/fix/linux/alas2023-2026-1910.md) | Jul 6, 2026 |
| Linux | python3.13-test amzn 2023 | 3.13.14-1.amzn2023.0.1 | [ALAS2023-2026-1910](https://patchblox.com/security/data/fix/linux/alas2023-2026-1910.md) | Jul 6, 2026 |
| Linux | python3.13-tkinter amzn 2023 | 3.13.14-1.amzn2023.0.1 | [ALAS2023-2026-1910](https://patchblox.com/security/data/fix/linux/alas2023-2026-1910.md) | Jul 6, 2026 |
| Linux | python3.14 Debian 14 | 3.14.6-1 | [DEBIAN-CVE-2026-7210](https://patchblox.com/security/data/fix/linux/debian-cve-2026-7210.md) | May 11, 2026 |
| Linux | python3.14 amzn 2023 | 3.14.5-1.amzn2023.0.1 | [ALAS2023-2026-1774](https://patchblox.com/security/data/fix/linux/alas2023-2026-1774.md) | Jun 8, 2026 |
| Linux | python3.14-debug amzn 2023 | 3.14.5-1.amzn2023.0.1 | [ALAS2023-2026-1774](https://patchblox.com/security/data/fix/linux/alas2023-2026-1774.md) | Jun 8, 2026 |
| Linux | python3.14-debuginfo amzn 2023 | 3.14.5-1.amzn2023.0.1 | [ALAS2023-2026-1774](https://patchblox.com/security/data/fix/linux/alas2023-2026-1774.md) | Jun 8, 2026 |
| Linux | python3.14-debugsource amzn 2023 | 3.14.5-1.amzn2023.0.1 | [ALAS2023-2026-1774](https://patchblox.com/security/data/fix/linux/alas2023-2026-1774.md) | Jun 8, 2026 |
| Linux | python3.14-devel amzn 2023 | 3.14.5-1.amzn2023.0.1 | [ALAS2023-2026-1774](https://patchblox.com/security/data/fix/linux/alas2023-2026-1774.md) | Jun 8, 2026 |
| Linux | python3.14-freethreading amzn 2023 | 3.14.5-1.amzn2023.0.1 | [ALAS2023-2026-1774](https://patchblox.com/security/data/fix/linux/alas2023-2026-1774.md) | Jun 8, 2026 |
| Linux | python3.14-freethreading-debug amzn 2023 | 3.14.5-1.amzn2023.0.1 | [ALAS2023-2026-1774](https://patchblox.com/security/data/fix/linux/alas2023-2026-1774.md) | Jun 8, 2026 |
| Linux | python3.14-freethreading-devel amzn 2023 | 3.14.5-1.amzn2023.0.1 | [ALAS2023-2026-1774](https://patchblox.com/security/data/fix/linux/alas2023-2026-1774.md) | Jun 8, 2026 |
| Linux | python3.14-freethreading-idle amzn 2023 | 3.14.5-1.amzn2023.0.1 | [ALAS2023-2026-1774](https://patchblox.com/security/data/fix/linux/alas2023-2026-1774.md) | Jun 8, 2026 |
| Linux | python3.14-freethreading-libs amzn 2023 | 3.14.5-1.amzn2023.0.1 | [ALAS2023-2026-1774](https://patchblox.com/security/data/fix/linux/alas2023-2026-1774.md) | Jun 8, 2026 |
| Linux | python3.14-freethreading-test amzn 2023 | 3.14.5-1.amzn2023.0.1 | [ALAS2023-2026-1774](https://patchblox.com/security/data/fix/linux/alas2023-2026-1774.md) | Jun 8, 2026 |
| Linux | python3.14-freethreading-tkinter amzn 2023 | 3.14.5-1.amzn2023.0.1 | [ALAS2023-2026-1774](https://patchblox.com/security/data/fix/linux/alas2023-2026-1774.md) | Jun 8, 2026 |
| Linux | python3.14-idle amzn 2023 | 3.14.5-1.amzn2023.0.1 | [ALAS2023-2026-1774](https://patchblox.com/security/data/fix/linux/alas2023-2026-1774.md) | Jun 8, 2026 |
| Linux | python3.14-libs amzn 2023 | 3.14.5-1.amzn2023.0.1 | [ALAS2023-2026-1774](https://patchblox.com/security/data/fix/linux/alas2023-2026-1774.md) | Jun 8, 2026 |
| Linux | python3.14-test amzn 2023 | 3.14.5-1.amzn2023.0.1 | [ALAS2023-2026-1774](https://patchblox.com/security/data/fix/linux/alas2023-2026-1774.md) | Jun 8, 2026 |
| Linux | python3.14-tkinter amzn 2023 | 3.14.5-1.amzn2023.0.1 | [ALAS2023-2026-1774](https://patchblox.com/security/data/fix/linux/alas2023-2026-1774.md) | Jun 8, 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 | python311 sles 15.6 | 3.11.15-150600.3.62.2 | [SUSE-SU-2026:3560-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3560-1.md) | Aug 10, 2026 |
| Linux | python311 sles 15.7 | 3.11.15-150600.3.62.2 | [SUSE-SU-2026:3560-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3560-1.md) | Aug 10, 2026 |
| Linux | python311-core sles 15.6 | 3.11.15-150600.3.62.2 | [SUSE-SU-2026:3560-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3560-1.md) | Aug 10, 2026 |
| Linux | python311-core sles 15.7 | 3.11.15-150600.3.62.2 | [SUSE-SU-2026:3560-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3560-1.md) | Aug 10, 2026 |
| Linux | python312 sles 15.6 | 3.12.14-150600.3.68.1 | [SUSE-SU-2026:4534-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4534-1.md) | Oct 6, 2026 |
| Linux | python312-core sles 15.6 | 3.12.14-150600.3.68.1 | [SUSE-SU-2026:4534-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4534-1.md) | Oct 6, 2026 |
| Linux | python313 sles 15.7 | 3.13.14-150700.4.53.1 | [SUSE-SU-2026:3649-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3649-1.md) | Aug 19, 2026 |
| Linux | python313-core sles 15.7 | 3.13.14-150700.4.53.1 | [SUSE-SU-2026:3649-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3649-1.md) | Aug 19, 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 2026-11-08T06:59:42Z 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

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.
