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    "cveMetadata": {
        "cveId": "CVE-2026-12940",
        "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
        "state": "PUBLISHED",
        "assignerShortName": "ibm",
        "dateReserved": "2026-06-22T19:44:45.455Z",
        "datePublished": "2026-07-30T16:41:54.216Z",
        "dateUpdated": "2026-07-31T03:56:16.617Z"
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            },
            "title": "Langflow is affected by remote code execution due to multiple unauthenticated and insufficiently authorized API endpoints",
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                    "descriptions": [
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                            "lang": "en",
                            "cweId": "CWE-78",
                            "description": "CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')",
                            "type": "CWE"
                        }
                    ]
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            ],
            "affected": [
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                    "vendor": "IBM",
                    "product": "Langflow OSS",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "1.0.0",
                            "lessThanOrEqual": "1.10.1",
                            "versionType": "semver"
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                        "cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*",
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                    ]
                }
            ],
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                {
                    "lang": "en",
                    "value": "IBM Langflow OSS 1.0.0 through 1.10.1  are vulnerable to unauthenticated remote code execution via environment variable injection in the MCP (Model Context Protocol) stdio launcher. The vulnerability exists in src/lfx/src/lfx/base/mcp/util.py where the DANGEROUS_ENV_VARS blocklist fails to include SHELLOPTS , BASHOPTS , and PS4 environment variables.",
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                            "value": "<p>IBM Langflow OSS 1.0.0 through 1.10.1&nbsp; are vulnerable to unauthenticated remote code execution via environment variable injection in the MCP (Model Context Protocol) stdio launcher. The vulnerability exists in src/lfx/src/lfx/base/mcp/util.py where the DANGEROUS_ENV_VARS blocklist fails to include SHELLOPTS , BASHOPTS , and PS4 environment variables.</p>"
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            "references": [
                {
                    "url": "https://www.ibm.com/support/pages/node/7279995",
                    "tags": [
                        "vendor-advisory",
                        "patch"
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                }
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                        "version": "3.1",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "availabilityImpact": "HIGH",
                        "baseSeverity": "CRITICAL",
                        "baseScore": 9.8,
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            "solutions": [
                {
                    "lang": "en",
                    "value": "IBM strongly recommends addressing the vulnerability now by upgrading  Langflow OSS to version 1.10.2 https://pypi.org/project/langflow/",
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                            "value": "<p>IBM strongly recommends addressing the vulnerability now by upgrading <a href=\"https://pypi.org/project/langflow/\" rel=\"nofollow\">Langflow OSS to version 1.10.2</a></p>"
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                                        "Exploitation": "none"
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