Bug 2458239 (CVE-2026-5713)

Summary: CVE-2026-5713 python: Python: Information disclosure and arbitrary code execution via remote debugging with a malicious process.
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: bbrownin, dfreiber, drow, jburrell, rhel-process-autobot, vkumar, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in Python. A malicious Python process could exploit the "profiling.sampling" module and "asyncio introspection capabilities" to read and write memory addresses within a privileged process. This vulnerability occurs when the privileged process connects to the malicious process via its remote debugging feature, potentially leading to information disclosure and arbitrary code execution. Successful exploitation requires repeated connections, which may cause instability in the connecting process.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2458480, 2458481, 2458482, 2458483, 2458484, 2458485, 2458486, 2458487, 2458488, 2458489, 2458490, 2458491    
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Description OSIDB Bzimport 2026-04-14 16:02:22 UTC 
The "profiling.sampling" module (Python 3.15+) and "asyncio introspection capabilities" (3.14+, "python -m asyncio ps" and "python -m asyncio pstree") features could be used to read and write addresses in a privileged process if that process connected to a malicious or "infected" Python process via the remote debugging feature. This vulnerability requires persistently and repeatedly connecting to the process to be exploited, even after the connecting process crashes with high likelihood due to ASLR.
Comment 4 errata-xmlrpc 2026-05-19 13:02:38 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:19019 https://access.redhat.com/errata/RHSA-2026:19019
Comment 5 errata-xmlrpc 2026-05-19 17:59:12 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:19176 https://access.redhat.com/errata/RHSA-2026:19176