What is CVE-2026-57128?

CVE-2026-57128 is a medium-severity vulnerability in Mervinpraison Praisonai, classified under Missing Authentication for Critical Function. CVSS score: 4.3/10. Published 2026-09-14.

How severe is CVE-2026-57128?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Mervinpraison Praisonai

CVE-2026-57128

PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.58, the SSE server in src/praisonai-agents/praisonaiagents/server/server.py does not consult ServerConfig.auth_token before handling /publish, /events, or /info requests. A network client that can reach the server can broadcast arbitrary events to connected clients and obtain server configuration and client-count information. This issue is fixed in praisonaiagents 1.6.58.

Vulnerability class: Broken Authentication

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Mervinpraison Praisonai — versions < 1.6.58

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-57128?: CVE-2026-57128 is a medium-severity vulnerability in Mervinpraison Praisonai, classified under Missing Authentication for Critical Function. CVSS score: 4.3/10. Published 2026-09-14.
How severe is CVE-2026-57128?: Medium severity. CVSS v3 base score is 4.3 out of 10.