Langflow: IP Spoofing Bypass via `X-Forwarded-For` Allowing Remote Configuration Write
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| langflow-ai | langflow | affected |
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| Langflow | Langflow |
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| Source | ID | Title |
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Github GHSA |
GHSA-4f6c-2vvp-gw82 | Langflow: IP Spoofing Bypass via `X-Forwarded-For` Allowing Remote Configuration Write |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.244% probability within 30 days)
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| 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. From 1.5.0 until 1.10.3, an IP spoofing vulnerability in the Model Context Protocol (MCP) configuration installation endpoint (POST /api/v1/mcp/project/{project_id}/install) allowed authenticated remote attackers to bypass the "local-only" access restriction. By sending a spoofed X-Forwarded-For: 127.0.0.1 header, an attacker could make the server treat the request as originating from localhost, letting them write/overwrite an MCP client configuration file on the server's filesystem. This vulnerability is fixed in 1.10.3. | |
| Title | Langflow: IP Spoofing Bypass via `X-Forwarded-For` Allowing Remote Configuration Write | |
| Weaknesses | CWE-290 CWE-345 |
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| References |
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| Metrics |
cvssV3_1
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