Unauthorized Event Broadcasting Vulnerability in PraisonAI by MervinPraison
CVE-2026-57128

4.3MEDIUM

Key Information:

Vendor

Mervinpraison

Status
Praisonai
Vendor
CVE Published:
14 September 2026

What is CVE-2026-57128?

The vulnerability in PraisonAI's SSE server allows unvalidated network clients to broadcast arbitrary events to connected users. This flaw compromises server configuration security and enables unauthorized access to sensitive information like the number of connected clients. Prior to version 1.6.58, the SSE server did not properly verify the authentication token for handling specific requests, presenting a significant risk for user data exposure.

Affected Version(s)

PraisonAI < 1.6.58

References

https://github.com/MervinPraison/PraisonAI/security/advis...
x_refsource_CONFIRM
https://github.com/MervinPraison/PraisonAI/commit/2f9677a...
x_refsource_MISC
https://github.com/MervinPraison/PraisonAI/releases/tag/v...
x_refsource_MISC

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.