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.
HighFixed on 3 platforms
CVSS
7.5
Low
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0067
52nd percentile
`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
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Python 3.13 | 3.13.14 | Python 3.13 3.13.14 | Jun 10, 2026 |
| Python 3.14 | 3.14.6 | Python 3.14 3.14.6 | Jun 10, 2026 |
| Linux | |||
| python · sles 15.7 | 2.7.18-150000.123.1 | SUSE-SU-2026:3635-1 | Aug 18, 2026 |
| python-base · sles 15.7 | 2.7.18-150000.123.1 | SUSE-SU-2026:3635-1 | Aug 18, 2026 |
| python-unversioned-command · amzn 2023 | 3.9.25-1.amzn2023.0.7 | ALAS2023-2026-1933 | Jul 6, 2026 |
| python3 · amzn 2023 | 3.9.25-1.amzn2023.0.7 | ALAS2023-2026-1933 | Jul 6, 2026 |
| python3 · sles 15.6 | 3.6.15-150300.10.129.1 | SUSE-SU-2026:4754-1 | Nov 7, 2026 |
| python3 · sles 15.7 | 3.6.15-150300.10.129.1 | SUSE-SU-2026:4754-1 | Nov 7, 2026 |
| python3-core · sles 15.6 | 3.6.15-150300.10.129.1 | SUSE-SU-2026:4754-1 | Nov 7, 2026 |
| python3-core · sles 15.7 | 3.6.15-150300.10.129.1 | SUSE-SU-2026:4754-1 | Nov 7, 2026 |
| python3-debug · amzn 2023 | 3.9.25-1.amzn2023.0.7 | ALAS2023-2026-1933 | Jul 6, 2026 |
| python3-devel · amzn 2023 | 3.9.25-1.amzn2023.0.7 | ALAS2023-2026-1933 | Jul 6, 2026 |
| python3-idle · amzn 2023 | 3.9.25-1.amzn2023.0.7 | ALAS2023-2026-1933 | Jul 6, 2026 |
| python3-libs · amzn 2023 | 3.9.25-1.amzn2023.0.7 | ALAS2023-2026-1933 | Jul 6, 2026 |
| python3-test · amzn 2023 | 3.9.25-1.amzn2023.0.7 | ALAS2023-2026-1933 | Jul 6, 2026 |
| python3-tkinter · amzn 2023 | 3.9.25-1.amzn2023.0.7 | ALAS2023-2026-1933 | Jul 6, 2026 |
| python3.10 · Fedora 43 | 3.10.22-1.fc43 | FEDORA-2026-AB6004EC50 | Oct 2, 2026 |
| python3.10-debug · Fedora 43 | 3.10.22-1.fc43 | FEDORA-2026-AB6004EC50 | Oct 2, 2026 |
| python3.10-debuginfo · Fedora 43 | 3.10.22-1.fc43 | FEDORA-2026-AB6004EC50 | Oct 2, 2026 |
| python3.10-debugsource · Fedora 43 | 3.10.22-1.fc43 | FEDORA-2026-AB6004EC50 | Oct 2, 2026 |
| python3.10-devel · Fedora 43 | 3.10.22-1.fc43 | FEDORA-2026-AB6004EC50 | Oct 2, 2026 |
| python3.10-idle · Fedora 43 | 3.10.22-1.fc43 | FEDORA-2026-AB6004EC50 | Oct 2, 2026 |
| python3.10-libs · Fedora 43 | 3.10.22-1.fc43 | FEDORA-2026-AB6004EC50 | Oct 2, 2026 |
| python3.10-test · Fedora 43 | 3.10.22-1.fc43 | FEDORA-2026-AB6004EC50 | Oct 2, 2026 |
| python3.10-tkinter · Fedora 43 | 3.10.22-1.fc43 | FEDORA-2026-AB6004EC50 | Oct 2, 2026 |
| python3.11 · amzn 2023 | 3.11.15-1.amzn2023.0.3 | ALAS2023-2026-1930 | Jul 6, 2026 |
| python3.11-debug · amzn 2023 | 3.11.15-1.amzn2023.0.3 | ALAS2023-2026-1930 | Jul 6, 2026 |
| python3.11-debuginfo · amzn 2023 | 3.11.15-1.amzn2023.0.3 | ALAS2023-2026-1930 | Jul 6, 2026 |
| python3.11-debugsource · amzn 2023 | 3.11.15-1.amzn2023.0.3 | ALAS2023-2026-1930 | Jul 6, 2026 |
| python3.11-devel · amzn 2023 | 3.11.15-1.amzn2023.0.3 | ALAS2023-2026-1930 | Jul 6, 2026 |
| python3.11-idle · amzn 2023 | 3.11.15-1.amzn2023.0.3 | ALAS2023-2026-1930 | Jul 6, 2026 |
| python3.11-libs · amzn 2023 | 3.11.15-1.amzn2023.0.3 | ALAS2023-2026-1930 | Jul 6, 2026 |
| python3.11-test · amzn 2023 | 3.11.15-1.amzn2023.0.3 | ALAS2023-2026-1930 | Jul 6, 2026 |
| python3.11-tkinter · amzn 2023 | 3.11.15-1.amzn2023.0.3 | ALAS2023-2026-1930 | Jul 6, 2026 |
| python3.12 · amzn 2023 | 3.12.13-2.amzn2023.0.3 | ALAS2023-2026-1931 | Jul 6, 2026 |
| python3.12-debug · amzn 2023 | 3.12.13-2.amzn2023.0.3 | ALAS2023-2026-1931 | Jul 6, 2026 |
| python3.12-debuginfo · amzn 2023 | 3.12.13-2.amzn2023.0.3 | ALAS2023-2026-1931 | Jul 6, 2026 |
| python3.12-debugsource · amzn 2023 | 3.12.13-2.amzn2023.0.3 | ALAS2023-2026-1931 | Jul 6, 2026 |
| python3.12-devel · amzn 2023 | 3.12.13-2.amzn2023.0.3 | ALAS2023-2026-1931 | Jul 6, 2026 |
| python3.12-idle · amzn 2023 | 3.12.13-2.amzn2023.0.3 | ALAS2023-2026-1931 | Jul 6, 2026 |
| python3.12-libs · amzn 2023 | 3.12.13-2.amzn2023.0.3 | ALAS2023-2026-1931 | Jul 6, 2026 |
| python3.12-test · amzn 2023 | 3.12.13-2.amzn2023.0.3 | ALAS2023-2026-1931 | Jul 6, 2026 |
| python3.12-tkinter · amzn 2023 | 3.12.13-2.amzn2023.0.3 | ALAS2023-2026-1931 | Jul 6, 2026 |
| python3.13 · amzn 2023 | 3.13.14-1.amzn2023.0.1 | ALAS2023-2026-1910 | Jul 6, 2026 |
| python3.13-debug · amzn 2023 | 3.13.14-1.amzn2023.0.1 | ALAS2023-2026-1910 | Jul 6, 2026 |
| python3.13-debuginfo · amzn 2023 | 3.13.14-1.amzn2023.0.1 | ALAS2023-2026-1910 | Jul 6, 2026 |
| python3.13-debugsource · amzn 2023 | 3.13.14-1.amzn2023.0.1 | ALAS2023-2026-1910 | Jul 6, 2026 |
| python3.13-devel · amzn 2023 | 3.13.14-1.amzn2023.0.1 | ALAS2023-2026-1910 | Jul 6, 2026 |
| python3.13-freethreading · amzn 2023 | 3.13.14-1.amzn2023.0.1 | ALAS2023-2026-1910 | Jul 6, 2026 |
| python3.13-freethreading-debug · amzn 2023 | 3.13.14-1.amzn2023.0.1 | ALAS2023-2026-1910 | Jul 6, 2026 |
| python3.13-idle · amzn 2023 | 3.13.14-1.amzn2023.0.1 | ALAS2023-2026-1910 | Jul 6, 2026 |
| python3.13-libs · amzn 2023 | 3.13.14-1.amzn2023.0.1 | ALAS2023-2026-1910 | Jul 6, 2026 |
| python3.13-test · amzn 2023 | 3.13.14-1.amzn2023.0.1 | ALAS2023-2026-1910 | Jul 6, 2026 |
| python3.13-tkinter · amzn 2023 | 3.13.14-1.amzn2023.0.1 | ALAS2023-2026-1910 | Jul 6, 2026 |
| python3.14 · Debian 14 | 3.14.6-1 | DEBIAN-CVE-2026-7210 | May 11, 2026 |
| python3.14 · amzn 2023 | 3.14.5-1.amzn2023.0.1 | ALAS2023-2026-1774 | Jun 8, 2026 |
| python3.14-debug · amzn 2023 | 3.14.5-1.amzn2023.0.1 | ALAS2023-2026-1774 | Jun 8, 2026 |
| python3.14-debuginfo · amzn 2023 | 3.14.5-1.amzn2023.0.1 | ALAS2023-2026-1774 | Jun 8, 2026 |
| python3.14-debugsource · amzn 2023 | 3.14.5-1.amzn2023.0.1 | ALAS2023-2026-1774 | Jun 8, 2026 |
| python3.14-devel · amzn 2023 | 3.14.5-1.amzn2023.0.1 | ALAS2023-2026-1774 | Jun 8, 2026 |
| python3.14-freethreading · amzn 2023 | 3.14.5-1.amzn2023.0.1 | ALAS2023-2026-1774 | Jun 8, 2026 |
| python3.14-freethreading-debug · amzn 2023 | 3.14.5-1.amzn2023.0.1 | ALAS2023-2026-1774 | Jun 8, 2026 |
| python3.14-freethreading-devel · amzn 2023 | 3.14.5-1.amzn2023.0.1 | ALAS2023-2026-1774 | Jun 8, 2026 |
| python3.14-freethreading-idle · amzn 2023 | 3.14.5-1.amzn2023.0.1 | ALAS2023-2026-1774 | Jun 8, 2026 |
| python3.14-freethreading-libs · amzn 2023 | 3.14.5-1.amzn2023.0.1 | ALAS2023-2026-1774 | Jun 8, 2026 |
| python3.14-freethreading-test · amzn 2023 | 3.14.5-1.amzn2023.0.1 | ALAS2023-2026-1774 | Jun 8, 2026 |
| python3.14-freethreading-tkinter · amzn 2023 | 3.14.5-1.amzn2023.0.1 | ALAS2023-2026-1774 | Jun 8, 2026 |
| python3.14-idle · amzn 2023 | 3.14.5-1.amzn2023.0.1 | ALAS2023-2026-1774 | Jun 8, 2026 |
| python3.14-libs · amzn 2023 | 3.14.5-1.amzn2023.0.1 | ALAS2023-2026-1774 | Jun 8, 2026 |
| python3.14-test · amzn 2023 | 3.14.5-1.amzn2023.0.1 | ALAS2023-2026-1774 | Jun 8, 2026 |
| python3.14-tkinter · amzn 2023 | 3.14.5-1.amzn2023.0.1 | ALAS2023-2026-1774 | Jun 8, 2026 |
| python3.9-debuginfo · amzn 2023 | 3.9.25-1.amzn2023.0.7 | ALAS2023-2026-1933 | Jul 6, 2026 |
| python3.9-debugsource · amzn 2023 | 3.9.25-1.amzn2023.0.7 | ALAS2023-2026-1933 | Jul 6, 2026 |
| python311 · sles 15.6 | 3.11.15-150600.3.62.2 | SUSE-SU-2026:3560-1 | Aug 10, 2026 |
| python311 · sles 15.7 | 3.11.15-150600.3.62.2 | SUSE-SU-2026:3560-1 | Aug 10, 2026 |
| python311-core · sles 15.6 | 3.11.15-150600.3.62.2 | SUSE-SU-2026:3560-1 | Aug 10, 2026 |
| python311-core · sles 15.7 | 3.11.15-150600.3.62.2 | SUSE-SU-2026:3560-1 | Aug 10, 2026 |
| python312 · sles 15.6 | 3.12.14-150600.3.68.1 | SUSE-SU-2026:4534-1 | Oct 6, 2026 |
| python312-core · sles 15.6 | 3.12.14-150600.3.68.1 | SUSE-SU-2026:4534-1 | Oct 6, 2026 |
| python313 · sles 15.7 | 3.13.14-150700.4.53.1 | SUSE-SU-2026:3649-1 | Aug 19, 2026 |
| python313-core · sles 15.7 | 3.13.14-150700.4.53.1 | SUSE-SU-2026:3649-1 | Aug 19, 2026 |
| No fix yet | |||
| Python 2 (Windows apps) | No fix yet | no-fix | n/a |
| Python 3.10 (Windows apps) | No fix yet | no-fix | n/a |
| Python 3.11 (Windows apps) | No fix yet | no-fix | n/a |
| Python 3.12 (Windows apps) | No fix yet | no-fix | n/a |
| Python 3.5 (Windows apps) | No fix yet | no-fix | n/a |
| Python 3.6 (Windows apps) | No fix yet | no-fix | n/a |
| Python 3.7 (Windows apps) | No fix yet | no-fix | n/a |
| Python 3.8 (Windows apps) | No fix yet | no-fix | n/a |
| Python 3.9 (Windows apps) | No fix yet | no-fix | n/a |
| Python3 (macOS) | No fix yet | no-fix | n/a |
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