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CVE-2026-57112 (GCVE-0-2026-57112)

Vulnerability from cvelistv5 – Published: 2026-09-15 10:13 – Updated: 2026-09-16 17:51
VLAI
Title
PraisonAI ToolsMCPServer legacy SSE transport accepts attacker Host/Origin and exposes registered tools
Summary
PraisonAI is a multi-agent teams system. From praisonaiagents 0.6.0 until 1.6.59 and PraisonAI 3.10.0 until 4.6.59, ToolsMCPServer.run_sse() in src/praisonai-agents/praisonaiagents/mcp/mcp_server.py mounts SseServerTransport on the legacy /sse and /messages/ endpoints without default Host, Origin, or authentication enforcement. A malicious website can use DNS rebinding against a reachable local or internal SSE server, supply attacker-controlled Host and Origin headers, enumerate registered tools, and invoke them with the server user's privileges. The Streamable HTTP transport rejects the same hostile Origin, which isolates the flaw to the legacy SSE wrapper. An initial remediation was released in praisonaiagents 1.6.59 and PraisonAI 4.6.59.
Severity
8.3 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 17:51 UTC
CWE
  • CWE-306 - Missing Authentication for Critical Function
  • CWE-346 - Origin Validation Error
  • CWE-862 - Missing Authorization
Assigner
References
Impacted products
Vendor Product Version CPE status
MervinPraison PraisonAI Affected: >= 3.10.0, < 4.6.59
guessed Create a notification for this product.
MervinPraison praisonaiagents Affected: >= 0.6.0, < 1.6.59
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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