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CVE-2026-57128— PraisonAI: Unauthenticated Event Injection via SSE `/publish` Endpoint

Quick assessment

Affected
MervinPraison PraisonAI
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Mervin Praison PraisonAI是Mervin Praison个人开发者开源的一个低代码多智能体协作框架。 Mervin Praison PraisonAI 1.6.58之前版本存在授权问题漏洞，该漏洞源于SSE服务器在处理/publish、/events或/info请求前未检查ServerConfig.auth_token，可能导致可访问服务器的网络客户端向已连接的客户端广播任意事件，并获取服务器配置和客户端数量信息。

CVSS 4.3 · Medium EPSS 0.25% · P17

Possible ATT&CK Techniques 1 AI

T1571.002

Affected Version Matrix 1

VendorProduct Version RangeStatus
MervinPraison PraisonAI < 1.6.58 affected
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I. Basic Information for CVE-2026-57128

Vulnerability Information
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Vulnerability Title
PraisonAI: Unauthenticated Event Injection via SSE `/publish` Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Mervin Praison PraisonAI 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mervin Praison PraisonAI是Mervin Praison个人开发者开源的一个低代码多智能体协作框架。 Mervin Praison PraisonAI 1.6.58之前版本存在授权问题漏洞，该漏洞源于SSE服务器在处理/publish、/events或/info请求前未检查ServerConfig.auth_token，可能导致可访问服务器的网络客户端向已连接的客户端广播任意事件，并获取服务器配置和客户端数量信息。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
MervinPraison PraisonAI < 1.6.58 -

II. Public POCs for CVE-2026-57128

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III. Intelligence Information for CVE-2026-57128

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Patches & Fixes for CVE-2026-57128 (1)

Vendor Advisories for CVE-2026-57128 (1)

Same Patch Batch · MervinPraison · 2026-09-14 · 16 CVEs total

CVE-2026-57123 9.8 CRITICAL PraisonAI: MCP SSE transport binds 0.0.0.0 with no authentication and no Origin validation
CVE-2026-57124 9.8 CRITICAL PraisonAI UI MCP connect endpoint allows unauthenticated local command execution
CVE-2026-57125 9.8 CRITICAL PraisonAI: Unauthenticated RCE via Jobs API + Approval Bypass
CVE-2026-57127 9.8 CRITICAL praisonai: recipe serve auth middleware silently disables itself when no secret is set
CVE-2026-57131 9.8 CRITICAL praisonai: Jobs API exposes agent-execution endpoints with no authentication
CVE-2026-57145 9.1 CRITICAL PraisonAI: Arbitrary File Read/Write via `multiedit` Tool Without Path Validation
CVE-2026-57122 8.6 HIGH PraisonAI: Webhook signature verification skipped (fail-open) when secret unset, allowing
CVE-2026-57126 8.5 HIGH praisonaiagents: SSRF guard validates literal IPs only and never resolves DNS
CVE-2026-57132 8.2 HIGH PraisonAI: PRAISONAI_CALL_AUTH=disabled environment variable unconditionally disables auth
CVE-2026-57130 8.1 HIGH PraisonAI: IMAP Command Injection via Unsanitized Email Search Parameters
CVE-2026-57119 7.5 HIGH PraisonAI: Unauthenticated Local File Inclusion via agent_file path in the Jobs API
CVE-2026-57129 7.5 HIGH PraisonAI: Arbitrary File Read via `@file:` Mention Path Traversal
CVE-2026-56839 7.3 HIGH PraisonAI Code agent tools fail open without a workspace boundary
CVE-2026-57115 6.5 MEDIUM PraisonAI: SpiderTools redirect-target SSRF protection bypass
CVE-2026-57120 6.5 MEDIUM PraisonAI: execute_code sandbox bypass: str.format C-level attribute access reads every bl

IV. Related Vulnerabilities

Same product: PraisonAI
Same vendor: MervinPraison
Same weakness: CWE-306