What is CVE-2026-40149?

CVE-2026-40149 is a high-severity vulnerability in Mervinpraison Praisonai, classified under CWE-396. CVSS score: 7.9/10. Published 2026-04-09.

How severe is CVE-2026-40149?

High severity. CVSS v3 base score is 7.9 out of 10.

Vulnerability in Mervinpraison Praisonai

CVE-2026-40149

PraisonAI is a multi-agent teams system. Prior to 4.5.128, the gateway's /api/approval/allow-list endpoint permits unauthenticated modification of the tool approval allowlist when no auth_token is configured (the default). By adding danger…

EPSS: 0.000 (3.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.9 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N.

Affected products

Mervinpraison Praisonai — versions < 4.5.128

Weakness classification (CWE)

CWE-396

References

https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-4wr3-f4p3-5wjh (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-40149?: CVE-2026-40149 is a high-severity vulnerability in Mervinpraison Praisonai, classified under CWE-396. CVSS score: 7.9/10. Published 2026-04-09.
How severe is CVE-2026-40149?: High severity. CVSS v3 base score is 7.9 out of 10.