CVE-2026-57123CWE-1327CWE-306CWE-350

CVE-2026-57123

Critical · published September 14, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
59.4
In the wild
Unconfirmed
What it is

PraisonAI 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.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00904 · 59.4th percentile
Weaknesses
CWE-1327 · Binding to an Unrestricted IP Address; CWE-306 · Missing Authentication for Critical Function; CWE-350 · Reliance on Reverse DNS Resolution for a Security-Critical Action
Published
2026-09-14T19:17Z
References (3)
https://github.com/MervinPraison/PraisonAI/commit/2adfe7e8323f6deec66925cf15a885b6238895e9 · [email protected]https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.59 · [email protected]https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-x227-pf99-vffg · [email protected]
EPSS history
Timeline
  • 16 SEP 04:29Z
    EPSS moved — → 0%
    epss
  • 14 SEP 14:46Z
    PraisonAI: MCP SSE transport binds 0.0.0.0 with no authentication and no Origin validation; bundled SecurityConfig is never wired in
    cvelistv5