VULNERABILITY INTELLIGENCE
CVE-2025-13836
CVSS score7.5 HIGH
EPSS probability1.75%
CISA KEVNot currently listed
Published2025-12-01
Last modified2026-09-03
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
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.
Weakness classification
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-400
Primary references
- cna@python.org — Patch
- cna@python.org — Patch
- cna@python.org — Patch
- cna@python.org — Patch
- cna@python.org — Patch
- cna@python.org — Patch
- cna@python.org — Issue Tracking, Patch
- cna@python.org — Issue Tracking, Patch
- cna@python.org — Vendor Advisory