CVE-2025-13836
December 01, 2025
When reading an HTTP response from a server, if no read amount is specified, the default behavior will be to use Content-Length. This allows a malicious server to cause the client to read large amounts of data into memory, potentially causing OOM or other DoS.
Affected Packages
cpython (CONDA):
Affected version(s) =3.14.0 <3.14.1Fix Suggestion:
Update to version 3.14.1cpython (CONDA):
Affected version(s) >=3.13.0 <3.13.10Fix Suggestion:
Update to version 3.13.10https://github.com/python/cpython.git (GITHUB):
Affected version(s) =v3.14.0 <v3.14.1Fix Suggestion:
Update to version v3.14.1https://github.com/python/cpython.git (GITHUB):
Affected version(s) >=v3.13.0 <v3.13.10Fix Suggestion:
Update to version v3.13.10Related Resources (9)
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
LOW
CVSS v3
Base Score:
5.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
Uncontrolled Resource Consumption
EPSS
Base Score:
0.15
