{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-55255",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-16T16:44:00.625Z",
        "datePublished": "2026-06-23T16:28:20.985Z",
        "dateUpdated": "2026-07-08T03:56:30.245Z"
    },
    "containers": {
        "cna": {
            "title": "Langflow: IDOR Vulnerability in `/api/v1/responses` Endpoint Allows Authenticated Attackers to Access Another User's Flow",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-639",
                            "lang": "en",
                            "description": "CWE-639: Authorization Bypass Through User-Controlled Key",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "LOW",
                        "baseScore": 8.4,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "LOW",
                        "scope": "CHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/langflow-ai/langflow/security/advisories/GHSA-qrpv-q767-xqq2",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/langflow-ai/langflow/security/advisories/GHSA-qrpv-q767-xqq2"
                },
                {
                    "name": "https://github.com/langflow-ai/langflow/pull/12832",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/langflow-ai/langflow/pull/12832"
                },
                {
                    "name": "https://github.com/langflow-ai/langflow/commit/2c9f498d664a3c32698b57d7c5e752625291060e",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/langflow-ai/langflow/commit/2c9f498d664a3c32698b57d7c5e752625291060e"
                }
            ],
            "affected": [
                {
                    "vendor": "langflow-ai",
                    "product": "langflow",
                    "versions": [
                        {
                            "version": "< 1.9.1",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-07-07T22:14:22.487Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.1, an Insecure Direct Object Reference (IDOR) vulnerability in /api/v1/responses endpoint allows an authenticated attacker to execute any flow belonging to another user by specifying the victim's flow ID in the request. This vulnerability is fixed in 1.9.1."
                }
            ],
            "source": {
                "advisory": "GHSA-qrpv-q767-xqq2",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-23T00:00:00+00:00",
                                "options": [
                                    {
                                        "Exploitation": "active"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3",
                                "id": "CVE-2026-55255"
                            }
                        }
                    }
                ],
                "references": [
                    {
                        "url": "https://github.com/langflow-ai/langflow/security/advisories/GHSA-qrpv-q767-xqq2",
                        "tags": [
                            "exploit"
                        ]
                    },
                    {
                        "url": "https://webflow.sysdig.com/blog/understanding-langflow-cve-2026-55255-and-why-higher-cvss-vulnerabilities-arent-always-the-most-exploited",
                        "tags": [
                            "third-party-advisory"
                        ]
                    },
                    {
                        "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-55255",
                        "tags": [
                            "government-resource"
                        ]
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-07-08T03:56:30.245Z"
                }
            }
        ]
    }
}