CVE-2026-34937: Praison Praisonaiagents

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

PraisonAI is a multi-agent teams system. Prior to version 1.5.90, run_python() in praisonai constructs a shell command string by interpolating user-controlled code into python3 -c "<code>" and passing it to subprocess.run(..., shell=True). The escaping logic only handles \ and ", leaving $() and backtick substitutions unescaped, allowing arbitrary OS command execution before Python is invoked. This issue has been patched in version 1.5.90.

Affected products

• Praison Praisonaiagents: before 1.5.90 (fixed in 1.5.90)

Published 2026-04-03. Last modified 2026-07-24.