CVE-2026-40153: Praison Praisonaiagents

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

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

• Praison Praisonaiagents: before 1.5.128 (fixed in 1.5.128)

Published 2026-04-09. Last modified 2026-06-17.