CVE-2026-55534: Mervinpraison Praisonai

High severity, CVSS 8.6. EPSS: 0.5% chance of exploitation in the next 30 days.

PraisonAI is a multi-agent teams system. From praisonai 4.6.34 until 4.6.58, praisonai serve agents accepts --api-key but _create_agents_app() does not authenticate POST /agents or POST /agents/{agent_name}. A network caller can invoke configured agents without credentials even when an API key was supplied. This issue is fixed in version 4.6.58.

Affected products

• Mervinpraison Praisonai: from 4.6.34, before 4.6.58 (fixed in 4.6.58)

Published 2026-08-25. Last modified 2026-09-09.