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CVE-2026-40151GHSA-PM96-6XPR-978XPYSEC-2026-2919

PraisonAI Affected by Unauthenticated Information Disclosure of Agent Instructions via /api/agents in AgentOS

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 4.5.128
1 Nuclei template
  • Exploitation: poc
  • Automatable: no
  • Technical impact: partial

Summary

PraisonAI is a multi-agent teams system. Prior to 4.5.128, the AgentOS deployment platform exposes a GET /api/agents endpoint that returns agent names, roles, and the first 100 characters of agent system instructions to any unauthenticated caller. The AgentOS FastAPI application has no authentication middleware, no API key validation, and defaults to CORS allow_origins=["*"] with host="0.0.0.0", making every deployment network-accessible and queryable from any origin by default. This vulnerability is fixed in 4.5.128.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • MervinPraison PraisonAI

    fixed in 4.5.128

  • praisonaiPyPI

    fixed in 4.5.128

References 2

GitHub · MervinPraison/PraisonAI

GitHub · projectdiscovery/nuclei-templates