What is CVE-2026-40151?

CVE-2026-40151 is a medium-severity vulnerability in Mervinpraison Praisonai, classified under Information Disclosure. CVSS score: 5.3/10. Published 2026-04-09.

How severe is CVE-2026-40151?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Information disclosure in Mervinpraison Praisonai

CVE-2026-40151

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…

Vulnerability class: Information Disclosure

EPSS: 0.001 (18.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Mervinpraison Praisonai — versions < 4.5.128

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-pm96-6xpr-978x (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-40151?: CVE-2026-40151 is a medium-severity vulnerability in Mervinpraison Praisonai, classified under Information Disclosure. CVSS score: 5.3/10. Published 2026-04-09.
How severe is CVE-2026-40151?: Medium severity. CVSS v3 base score is 5.3 out of 10.