CVE-2026-5713

MEDIUM

Out-of-bounds read/write during remote profiling and asyncio process introspection when connecting to malicious target

Title source: cna
STIX 2.1

Description

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.

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