PraisonAI: MCP SSE transport binds 0.0.0.0 with no authentication and no Origin validation; bundled SecurityConfig is never wired in

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-57123
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-14 15:17:05 UTC
Updated2026-09-15 14:45:28 UTC
DescriptionPraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.59, ToolsMCPServer.run_sse and launch_tools_mcp_server bind to 0.0.0.0 and create /sse and /messages/ routes without invoking the available SecurityConfig authentication, origin-validation, or DNS-rebinding controls. Any reachable client can list and invoke registered tools, and a browser can target a local instance through DNS rebinding, with impact determined by the registered file, shell, and code-execution tools. This vulnerability is fixed in praisonaiagents 1.6.59.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.004740000 probability, percentile 0.397280000 (date 2026-09-15)

Problem Types: CWE-306 | CWE-350 | CWE-1327 | CWE-306 CWE-306: Missing Authentication for Critical Function | CWE-350 CWE-350: Reliance on Reverse DNS Resolution for a Security-Critical Action | CWE-1327 CWE-1327: Binding to an Unrestricted IP Address

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA MervinPraison Praisonaiagents affected < 1.6.59 Not specified

References

ReferenceSourceLinkTags
github.com/MervinPraison/PraisonAI/releases/tag/v4.6.59 [email protected] github.com
github.com/MervinPraison/PraisonAI/security/advisories/GHSA-x227-pf99-vffg [email protected] github.com
github.com/MervinPraison/PraisonAI/commit/2adfe7e8323f6deec66925cf15a885... [email protected] github.com
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