CVE-2026-40088: Praison Praisonai

Critical severity, CVSS 9.6. EPSS: 0.6% chance of exploitation in the next 30 days.

PraisonAI is a multi-agent teams system. Prior to 4.5.121, the execute_command function and workflow shell execution are exposed to user-controlled input via agent workflows, YAML definitions, and LLM-generated tool calls, allowing attackers to inject arbitrary shell commands through shell metacharacters. This vulnerability is fixed in 4.5.121.

Affected products

• Praison Praisonai: before 4.5.121 (fixed in 4.5.121)

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