# CVE-2026-40153

## Summary

- **CVE ID:** CVE-2026-40153
- **Severity:** HIGH
- **CVSS Score:** 7.4 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N)
- **CWE:** CWE-526
- **Published:** Apr 9, 2026
- **Last Modified:** Apr 13, 2026

## Description

PraisonAIAgents is a multi-agent teams system. Prior to 1.5.128, the execute_command function in shell_tools.py calls os.path.expandvars() on every command argument at line 64, manually re-implementing shell-level environment variable expansion despite using shell=False (line 88) for security. This allows exfiltration of secrets stored in environment variables (database credentials, API keys, cloud access keys). The approval system displays the unexpanded $VAR references to human reviewers, creating a deceptive approval where the displayed command differs from what actually executes. This vulnerability is fixed in 1.5.128.

## Affected Products

- MervinPraison — PraisonAIAgents (< 1.5.128)

## References

- [CNA](https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-v8g7-9q6v-p3x8)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.27%
- **EPSS Percentile:** 19.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._