CVE-2026-5713
MEDIUMOut-of-bounds read/write during remote profiling and asyncio process introspection when connecting to malicious target
Title source: cnaDescription
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.
References (6)
Core 6
Core References
Issue Tracking issue-tracking
https://github.com/python/cpython/issues/148178
Patch patch
https://github.com/python/cpython/pull/148187
Vendor Advisory vendor-advisory
https://mail.python.org/archives/list/[email protected]/thread/OG4RHARYSNIE22GGOMVMCRH76L5HKPLM/
Scores
CVSS v4
5.3
EPSS
0.0013
EPSS Percentile
3.1%
CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-121
CWE-125
Status
published
Products (3)
Python Software Foundation/CPython
3.14.0 - 3.14.5
Python Software Foundation/CPython
3.14.0 - 3.15.0
Python Software Foundation/CPython
3.15.0a1 - 3.15.0b1
Published
Apr 14, 2026
Tracked Since
Apr 14, 2026