Vulnerability Description
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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/MervinPraison/PraisonAI/commit/2adfe7e8323f6deec66925cf15a885
- https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.59
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-vmf9-xx9w-86
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-vmf9-xx9w-86
FAQ
What is CVE-2026-57112?
CVE-2026-57112 is a vulnerability with a CVSS score of 8.3 (HIGH). 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 m...
How severe is CVE-2026-57112?
CVE-2026-57112 has been rated HIGH with a CVSS base score of 8.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-57112?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.