CVE-2025-13836

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/python/cpython/commit/4ce27904b597c77d74dd93f2c912676021a99155
https://github.com/python/cpython/commit/5a4c4a033a4a54481be6870aa1896fad732555b5
https://github.com/python/cpython/issues/119451
https://github.com/python/cpython/pull/119454
https://mail.python.org/archives/list/[email protected]/thread/OQ6G7MKRQIS3OAREC3HNG3D2DPOU34XO/

Configurations

No configuration.

History

02 Dec 2025, 19:15

Type	Values Removed	Values Added
CWE		CWE-400

02 Dec 2025, 18:15

Type	Values Removed	Values Added
References		() https://mail.python.org/archives/list/[email protected]/thread/OQ6G7MKRQIS3OAREC3HNG3D2DPOU34XO/ -

01 Dec 2025, 19:15

Type	Values Removed	Values Added
References		() https://github.com/python/cpython/commit/4ce27904b597c77d74dd93f2c912676021a99155 - () https://github.com/python/cpython/commit/5a4c4a033a4a54481be6870aa1896fad732555b5 -

01 Dec 2025, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-12-01 18:16

Updated : 2025-12-02 19:15

NVD link : CVE-2025-13836

Mitre link : CVE-2025-13836

CVE.ORG link : CVE-2025-13836

JSON object : View

Products Affected

No product.

CWE

CWE-400

Uncontrolled Resource Consumption

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