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        "cveId": "CVE-2026-8446",
        "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
        "state": "PUBLISHED",
        "assignerShortName": "ibm",
        "dateReserved": "2026-05-12T20:35:37.964Z",
        "datePublished": "2026-08-05T16:27:46.906Z",
        "dateUpdated": "2026-08-05T17:11:12.438Z"
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            "title": "Langflow is affected by security vulnerabilities in Model Context Protocol features",
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                            "lang": "en",
                            "cweId": "CWE-306",
                            "description": "CWE-306 Missing Authentication for Critical Function",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
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                    "vendor": "IBM",
                    "product": "Langflow OSS",
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                            "version": "1.0.0",
                            "lessThanOrEqual": "1.10.3",
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                        "cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*",
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                    ]
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            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "IBM Langflow OSS 1.0.0 through 1.10.3 contain an authentication bypass vulnerability in the Model Context Protocol (MCP) composer endpoint when mcp_composer_enabled=true (default) and projects are configured with auth_type=oauth .",
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                            "value": "<p>IBM Langflow OSS 1.0.0 through 1.10.3 contain an authentication bypass vulnerability in the Model Context Protocol (MCP) composer endpoint when mcp_composer_enabled=true (default) and projects are configured with auth_type=oauth .</p>"
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            ],
            "references": [
                {
                    "url": "https://www.ibm.com/support/pages/node/7282147",
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                        "patch"
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                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "NONE",
                        "availabilityImpact": "NONE",
                        "baseSeverity": "HIGH",
                        "baseScore": 7.5,
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                    "lang": "en",
                    "value": "IBM recommends upgrading to Langflow OSS 1.11.0 or newer  https://github.com/langflow-ai/langflow/releases",
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                    "value": "CVEs reported to IBM: CVE-2026-8446 by odgrso (GMO CyberSecurity by Ierae, Inc.); CVE-2026-17626 by Thai Son Dinh (VinSOC Labs, (R&amp;D).",
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