Medium severity5.3NVD Advisory· Published Apr 9, 2026· Updated Apr 20, 2026
CVE-2026-40151
CVE-2026-40151
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
PraisonAIPyPI | < 4.5.128 | 4.5.128 |
Affected products
2Patches
Vulnerability mechanics
References
3- github.com/MervinPraison/PraisonAI/security/advisories/GHSA-pm96-6xpr-978xnvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-pm96-6xpr-978xghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-40151ghsaADVISORY
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