Detect PraisonAI Sandbox Escape via print.__self__ Builtins Leak in execute_code in IBM QRadar
Detects exploitation of CVE-2026-47392, a critical sandbox escape vulnerability in PraisonAI (praisonaiagents <= 1.6.39, PraisonAI <= 4.6.39). The flaw allows attackers to leak the Python builtins module through `print.__self__` within the `execute_code` subprocess mode, bypassing sandbox restrictions and achieving arbitrary code execution on the host. A public proof-of-concept is available.
MITRE ATT&CK
QRadar Detection Query
SELECT DATEFORMAT(starttime, 'YYYY-MM-dd HH:mm:ss') AS EventTime, sourceip, username, "Application", "Command", "Process Name"
FROM events
WHERE LOGSOURCETYPENAME(devicetype) IN ('Microsoft Windows Security Event Log', 'Linux OS', 'SysmonForLinux')
AND (LOWER("Command") LIKE '%praisonai%' OR LOWER("Command") LIKE '%praisonaiagents%')
AND (
LOWER("Command") LIKE '%print.__self__%'
OR LOWER("Command") LIKE '%__builtins__%'
OR LOWER("Command") LIKE '%execute_code%'
OR (LOWER("Command") LIKE '%subprocess%' AND LOWER("Command") LIKE '%shell%')
)
LAST 7 DAYS
ORDER BY starttime DESCQRadar AQL query detecting CVE-2026-47392 exploitation attempts through command-line analysis of PraisonAI process events.
Data Sources
Required Tables
False Positives & Tuning
- Authorized penetration testing activities against PraisonAI deployments with documented scope
- Developer integration testing environments where sandbox restrictions are intentionally relaxed
- Security research activities running published PoC for detection validation purposes
- Legitimate AI agent workflows requiring dynamic code evaluation with subprocess helpers
Other platforms for CVE-2026-47392
Testing Methodology
Validate this detection against 3 adversary techniques from Atomic Red Team. Each test below lists the behaviour to exercise and the telemetry you should expect to see. Executable commands and cleanup steps are available with Pro.
- Test 1PraisonAI Builtins Leak via print.__self__ in execute_code
Expected signal: Process spawn: python3 executing praisonaiagents code_tools module; child process executing 'id' command via os.popen; stdout contains 'SANDBOX_ESCAPE_SUCCESS' followed by uid/gid output
- Test 2PraisonAI Sandbox Escape to Reverse Shell
Expected signal: Process tree: python3 -> praisonaiagents -> bash -c 'bash -i' with network connection to 127.0.0.1:4444; network telemetry showing TCP connection from python process
- Test 3PraisonAI Sandbox Escape with Credential File Exfiltration
Expected signal: File open event on /tmp/lab_creds.txt by python process; outbound HTTP POST to 127.0.0.1:8888 from PraisonAI process; process command line contains __builtins__ and os.system invocation
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