{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-81102",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-08-26T16:00:34.461Z",
        "datePublished": "2026-08-27T14:50:41.263Z",
        "dateUpdated": "2026-08-27T14:50:41.263Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
                "shortName": "VulnCheck",
                "dateUpdated": "2026-08-27T14:50:41.263Z"
            },
            "datePublic": "2026-08-26T00:00:00.000Z",
            "title": "Dropbox Dash MCP Server DNS Rebinding via Missing Host Header Validation",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "The Dash MCP server bound its listener to the loopback address but never checked the host a request named. src/mcp_server_dash.py constructed the server for its network mode with the interface restricted to loopback and no transport-security settings, so a name that had been pointed at the loopback address still reached the listener while carrying the attacker's host name. A page in a visitor's browser could therefore drive the local server and invoke its company-search and file-detail tools under the Dropbox credential the server holds. Only the network mode was reachable this way; the standard input mode was not. The fix supplies transport-security settings that enable host checking and allow only the loopback name and port, rejecting other hosts before a tool runs. The repository publishes no versions, so the affected boundary is the commit preceding the fix."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-346",
                            "description": "Origin Validation Error",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "dropbox",
                    "product": "mcp-server-dash",
                    "collectionURL": "https://github.com/dropbox/mcp-server-dash",
                    "repo": "https://github.com/dropbox/mcp-server-dash",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "84567b74e3c72e42d5e50ee07c56864613f519c2",
                            "status": "unaffected",
                            "versionType": "git"
                        },
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "git",
                            "lessThan": "84567b74e3c72e42d5e50ee07c56864613f519c2"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ],
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "NONE",
                        "userInteraction": "PASSIVE",
                        "vulnConfidentialityImpact": "LOW",
                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
                        "version": "4.0",
                        "baseSeverity": "LOW",
                        "baseScore": 2.3,
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
                    }
                },
                {
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ],
                    "cvssV3_1": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "HIGH",
                        "privilegesRequired": "NONE",
                        "userInteraction": "REQUIRED",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "LOW",
                        "integrityImpact": "NONE",
                        "availabilityImpact": "NONE",
                        "version": "3.1",
                        "baseSeverity": "LOW",
                        "baseScore": 3.1,
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N"
                    }
                }
            ],
            "references": [
                {
                    "url": "https://github.com/dropbox/mcp-server-dash",
                    "tags": [
                        "product"
                    ]
                },
                {
                    "url": "https://github.com/dropbox/mcp-server-dash/pull/12",
                    "tags": [
                        "issue-tracking"
                    ]
                },
                {
                    "name": "VulnCheck Advisory: Dropbox Dash MCP Server DNS Rebinding via Missing Host Header Validation",
                    "tags": [
                        "third-party-advisory"
                    ],
                    "url": "https://www.vulncheck.com/advisories/dropbox-dash-mcp-server-dns-rebinding-via-missing-host-header-validation"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Avishai Gonen (Pluto Security)",
                    "type": "finder"
                }
            ],
            "x_generator": {
                "engine": "vulncheck-endgame"
            },
            "source": {
                "discovery": "UNKNOWN"
            }
        }
    }
}