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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.
Read the publisher's advisoryVendor product
Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "MervinPraison",
"product": "PraisonAI",
"versions": [
{
"version": ">= 3.10.0, < 4.6.59",
"status": "affected"
}
]
}Vendor product
Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "MervinPraison",
"product": "praisonaiagents",
"versions": [
{
"version": ">= 0.6.0, < 1.6.59",
"status": "affected"
}
]
}Original source record · Cite this exact observation · Complete original publisher JSON