CVE-2026-40151
Last modified
CVE-2026-40151 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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. EPSS estimates a 0.76% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Praison | Praisonai | < 4.5.128 |
References
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-pm96-6xpr-978xExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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