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Description

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.

PUBLISHED Reserved 2026-04-09 | Published 2026-04-09 | Updated 2026-04-10 | Assigner GitHub_M




MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Problem types

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Product status

< 4.5.128
affected

References

github.com/...isonAI/security/advisories/GHSA-pm96-6xpr-978x

cve.org (CVE-2026-40151)

nvd.nist.gov (CVE-2026-40151)

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