Allocation of Resources Without Limits or Throttling Affecting python package, versions [,3.14.1)
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- published3 Dec 2025
- disclosed1 Dec 2025
- creditUnknown
Introduced: 1 Dec 2025
NewCVE-2025-13836 (opens in a new tab)How to fix?
Upgrade python to version 3.14.1 or higher.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the http.client.HTTPResponse.read() function when used without arguments. An attacker can exhaust system memory and potentially cause application or system instability by sending a crafted HTTP response with a very large or manipulated Content-Length header to a client that reads the response without specifying a byte limit.
Note:
This is only exploitable if the application connects to a malicious or compromised server and does not set an explicit read size when using the read() function.
Workaround
This vulnerability can be mitigated by always specifying a safe, explicit byte limit when reading data using the read() function.