CyberRota Analysis
AI-GeneratedThe vulnerability affects the `execute_code()` function in PraisonAI versions prior to 4.6.40, allowing attackers to bypass the subprocess sandbox and achieve arbitrary OS command execution by exploiting the `print.__self__` attribute to access the built-in Python modules. This critical flaw poses a significant risk to systems running vulnerable versions, as it undermines the security mechanisms intended to isolate code execution. Organizations utilizing PraisonAI should prioritize updating to version 4.6.40 or later to mitigate this severe risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
PraisonAI is a multi-agent teams system. Prior to version 4.6.40 of PraisonAI, corresponding to version 1.6.40 of praisonaiagents, `execute_code()` in `praisonaiagents/tools/python_tools.py` (v1.6.37, subprocess sandbox mode) can be fully bypassed using `print.__self__` to retrieve the real Python `builtins` module, from which `__import__` can be extracted via `vars()` and runtime string construction. This achieves arbitrary OS command execution on the host, completely defeating the sandbox. This is a novel bypass that survives all patches for CVE-2026-39888 (frame traversal), CVE-2026-34938 (str subclass), and CVE-2026-40158 (`type.__getattribute__` trampoline). PraisonAI version 4.6.40 and praisonaiagents version 1.6.40 contain an updated fix.