PT-2026-31790 · Fastapi+2 · Fastapi+2

Published 2026-04-09 · Updated 2026-04-10 · CVE-2026-40151

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions PraisonAI versions prior to 4.5.128

Description PraisonAI is a multi-agent teams system. 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.

Recommendations Update to version 4.5.128 or later.

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2026-40151

GHSA-PM96-6XPR-978X

Affected Products

Agentos

Fastapi

Praisonai

References · 6

• https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-pm96-6xpr-978x · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-40151 · Security Note
• https://osv.dev/vulnerability/GHSA-pm96-6xpr-978x · Vendor Advisory
• https://github.com/MervinPraison/PraisonAI · Note
• https://twitter.com/VulmonFeeds/status/2042408172162289818 · Twitter Post
• https://twitter.com/CVEnew/status/2042364303043449031 · Twitter Post