CVE-2025-12084
December 03, 2025
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.
Affected Packages
cpython (CONDA):
Affected version(s) >=3.13.0 <3.13.10Fix Suggestion:
Update to version 3.13.10cpython (CONDA):
Affected version(s) =3.14.0 <3.14.1Fix Suggestion:
Update to version 3.14.1https://github.com/python/cpython.git (GITHUB):
Affected version(s) >=v3.13.0 <v3.13.10Fix Suggestion:
Update to version v3.13.10https://github.com/python/cpython.git (GITHUB):
Affected version(s) =v3.14.0 <v3.14.1Fix Suggestion:
Update to version v3.14.1Related Resources (14)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
Inefficient Algorithmic Complexity
EPSS
Base Score:
0.10
