Vulnerability · NVD

CVE-2026-7210

HIGH 7.5 Published on 2026-05-11

`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.

Attack vector : Network No privileges required No user interaction

Show raw CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS 0.79% above median percentile 52.9%

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

Python 3.12 Windows winget:Python.Python.3.12

Affected — Fixed in — Latest tracked 3.12.10 undetermined

Vulnerable CPE configurations (11)

Vendor	Product	Platform	Versions	CPE 2.3 URI
python	python All platforms (wildcard)	All platforms (wildcard)	<3.13.14	cpe:2.3:a:python:python::::::::
python	python All platforms (wildcard)	All platforms (wildcard)	≥3.14.0 <3.14.6	cpe:2.3:a:python:python::::::::
python	python All platforms (wildcard)	All platforms (wildcard)	—	cpe:2.3:a:python:python:3.15.0:alpha1::::::
python	python All platforms (wildcard)	All platforms (wildcard)	—	cpe:2.3:a:python:python:3.15.0:alpha2::::::
python	python All platforms (wildcard)	All platforms (wildcard)	—	cpe:2.3:a:python:python:3.15.0:alpha3::::::
python	python All platforms (wildcard)	All platforms (wildcard)	—	cpe:2.3:a:python:python:3.15.0:alpha4::::::
python	python All platforms (wildcard)	All platforms (wildcard)	—	cpe:2.3:a:python:python:3.15.0:alpha5::::::
python	python All platforms (wildcard)	All platforms (wildcard)	—	cpe:2.3:a:python:python:3.15.0:alpha6::::::
python	python All platforms (wildcard)	All platforms (wildcard)	—	cpe:2.3:a:python:python:3.15.0:alpha7::::::
python	python All platforms (wildcard)	All platforms (wildcard)	—	cpe:2.3:a:python:python:3.15.0:alpha8::::::
python	python All platforms (wildcard)	All platforms (wildcard)	—	cpe:2.3:a:python:python:3.15.0:beta1::::::

View on NVD ↗ Advisory · github.com