PraisonAI: Origin validation bypass in MCP HTTP Stream transport allows browser-mediated unauthenticated tool execution on local MCP server
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| MervinPraison | PraisonAI | affected |
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| Vendor | Product | Versions | ||||||||
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| Mervinpraison | Praisonai |
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-wj6g-v78p-6fx3 | PraisonAI has an origin validation bypass in MCP HTTP Stream transport that allows browser-mediated unauthenticated tool execution on local MCP server |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.175% probability within 30 days)
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ssvc
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| First Time appeared |
Mervinpraison
Mervinpraison praisonai |
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| Vendors & Products |
Mervinpraison
Mervinpraison praisonai |
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| Description | PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, the MCP HTTP Stream _validate_origin method accepts request_origin.startswith(allowed), so the attacker-controlled localhost.evil.example HTTP origin matches the localhost allowlist. Without an API key, a malicious webpage can submit tools/call requests to the local MCP server and execute exposed tools. This issue is fixed in version 4.6.58. | |
| Title | PraisonAI: Origin validation bypass in MCP HTTP Stream transport allows browser-mediated unauthenticated tool execution on local MCP server | |
| Weaknesses | CWE-306 CWE-346 |
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| References |
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| Metrics |
cvssV3_1
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