CVE-2026-40111
Description
PraisonAIAgents is a multi-agent teams system. Prior to 1.5.128, he memory hooks executor in praisonaiagents passes a user-controlled command string directly to subprocess.run() with shell=True at src/praisonai-agents/praisonaiagents/memory/hooks.py. No sanitization is performed and shell metacharacters are interpreted by /bin/sh before the intended command executes. Two independent attack surfaces exist. The first is via pre_run_command and post_run_command hook event types registered through the hooks configuration. The second and more severe surface is the .praisonai/hooks.json lifecycle configuration, where hooks registered for events such as BEFORE_TOOL and AFTER_TOOL fire automatically during agent operation. An agent that gains file-write access through prompt injection can overwrite .praisonai/hooks.json and have its payload execute silently at every subsequent lifecycle event without further user interaction. This vulnerability is fixed in 1.5.128.
How to fix
- praison praisonaiagents1.5.128 or later
- praisonaiagents1.5.128 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| praison praisonaiagents | v < 1.5.128 | 1.5.128 |
| praisonaiagentsPyPI | v < 1.5.128 | 1.5.128 |
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