{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-105741",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-10-05T19:11:07.946Z",
        "datePublished": "2026-10-05T20:56:00.060Z",
        "dateUpdated": "2026-10-05T20:56:00.060Z"
    },
    "containers": {
        "cna": {
            "title": "Langflow: IP Spoofing Bypass via `X-Forwarded-For` Allowing Remote Configuration Write",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-290",
                            "lang": "en",
                            "description": "CWE-290: Authentication Bypass by Spoofing",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-345",
                            "lang": "en",
                            "description": "CWE-345: Insufficient Verification of Data Authenticity",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "LOW",
                        "baseScore": 7.1,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "LOW",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/langflow-ai/langflow/security/advisories/GHSA-4f6c-2vvp-gw82",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/langflow-ai/langflow/security/advisories/GHSA-4f6c-2vvp-gw82"
                },
                {
                    "name": "https://github.com/langflow-ai/langflow/pull/13915",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/langflow-ai/langflow/pull/13915"
                },
                {
                    "name": "https://github.com/langflow-ai/langflow/commit/1f39a4b9d62c9dfa1b21fa7f85e23a180c351b72",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/langflow-ai/langflow/commit/1f39a4b9d62c9dfa1b21fa7f85e23a180c351b72"
                },
                {
                    "name": "https://github.com/langflow-ai/langflow/commit/94859df33acd70b2a1f816e26d68f5e89a7e5639",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/langflow-ai/langflow/commit/94859df33acd70b2a1f816e26d68f5e89a7e5639"
                },
                {
                    "name": "https://github.com/langflow-ai/langflow/releases/tag/v1.10.3",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/langflow-ai/langflow/releases/tag/v1.10.3"
                }
            ],
            "affected": [
                {
                    "vendor": "langflow-ai",
                    "product": "langflow",
                    "versions": [
                        {
                            "version": ">= 1.5.0, < 1.10.3",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-05T20:56:00.060Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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."
                }
            ],
            "source": {
                "advisory": "GHSA-4f6c-2vvp-gw82",
                "discovery": "UNKNOWN"
            }
        }
    }
}