Summary
Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems.
Security Fix(es):
* cpython: Excessive read buffering DoS in http.client (CVE-2025-13836)
* cpython: python: cpython: Quadratic algorithm in xml.dom.minidom leads to denial of service (CVE-2025-12084)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Fixed packages 8
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 8 | python3.11 | 3.11.13-4.el8_10 |
| AlmaLinux · 8 | python3.11-debug | 3.11.13-4.el8_10 |
| AlmaLinux · 8 | python3.11-devel | 3.11.13-4.el8_10 |
| AlmaLinux · 8 | python3.11-idle | 3.11.13-4.el8_10 |
| AlmaLinux · 8 | python3.11-libs | 3.11.13-4.el8_10 |
| AlmaLinux · 8 | python3.11-rpm-macros | 3.11.13-4.el8_10 |
| AlmaLinux · 8 | python3.11-test | 3.11.13-4.el8_10 |
| AlmaLinux · 8 | python3.11-tkinter | 3.11.13-4.el8_10 |
Vulnerabilities 2
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Medium 6.3
Quadratic complexity in node ID cache clearing
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.
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Medium 6.3
Excessive read buffering DoS in http.client
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.