Langflow: Authenticated RCE via MCP Stdio transport allows any user to execute arbitrary OS commands on the server
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| langflow-ai | langflow | affected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Langflow | Langflow |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: 3.9% (3.885% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Langflow
Langflow langflow |
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| Vendors & Products |
Langflow
Langflow langflow |
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|---|---|---|
| Metrics |
ssvc
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| Description | Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, any authenticated Langflow user can achieve Remote Code Execution (RCE) on the server by adding an MCP server with the "Stdio" transport. The user-supplied command field is passed directly to bash -c "exec {command}" with zero validation, no allowlisting, and no sandboxing. The command executes immediately when the server list is fetched. Additionally, the env field allows arbitrary environment variable injection (e.g., LD_PRELOAD, PATH override). This vulnerability is fixed in 1.9.0. | |
| Title | Langflow: Authenticated RCE via MCP Stdio transport allows any user to execute arbitrary OS commands on the server | |
| Weaknesses | CWE-78 | |
| References |
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| Metrics |
cvssV3_1
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