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vulnerability
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CVE-2025-12084
Component Overview
Vulnerability Overview
Name
CVE-2025-12084
Source
NVD (
link
)
Debian (
link
)
Description
When building nested elements using xml.dom.minidom methods such as appendChild() that have a dependency on _clear_id_cache() the algorithm is quadratic. Availability can be impacted when building excessively nested documents.
CWEs
CWE-407
Published Date
Dec 3, 2025
Updated Date
Jun 17, 2026
Workaround
-
Advisories
https://github.com/python/cpython/commit/027f21e417b26eed4505ac2db101a4352b7c51a0
Patch
https://github.com/python/cpython/commit/08d8e18ad81cd45bc4a27d6da478b51ea49486e4
Patch
https://github.com/python/cpython/commit/ddcd2acd85d891a53e281c773b3093f9db953964
Patch
https://github.com/python/cpython/issues/142145
Issue Tracking
https://github.com/python/cpython/pull/142146
Issue Tracking
Analysis
#
Affected Component
Analysis
python3
Exploitable
Vulnerability Ratings
#
6.3
CVSSv4
5.3
CVSSv31
NaN
other
Others affected components
#
Name
Project
Project Version
Version
Status
python3
buildroot
2025.02.x
3.12.13
Exploitable
python3
buildroot
master
3.14.6
Not Affected
python3
openwrt
master
3.14.5-r1
Not Affected
python3
openwrt
openwrt-25.12
3.13.9-r3
Exploitable
python3
yocto
master
3.14.6
Not Affected
python3
yocto
scarthgap
3.12.13
Exploitable