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{
    "url": "http://public2.vulnerablecode.io/api/packages/994910?format=api",
    "purl": "pkg:npm/%40grackle-ai/mcp@0.39.1",
    "type": "npm",
    "namespace": "@grackle-ai",
    "name": "mcp",
    "version": "0.39.1",
    "qualifiers": {},
    "subpath": "",
    "is_vulnerable": true,
    "next_non_vulnerable_version": "0.70.2",
    "latest_non_vulnerable_version": "0.70.2",
    "affected_by_vulnerabilities": [
        {
            "url": "http://public2.vulnerablecode.io/api/vulnerabilities/91787?format=api",
            "vulnerability_id": "VCID-m9wj-e596-u3ca",
            "summary": "@grackle-ai/mcp has a workspace authorization bypass in its knowledge_search MCP tool\n### Impact\n\nThe `knowledge_search` and `knowledge_get_node` MCP tools are included in `SCOPED_TOOLS` (visible to scoped agents) but their handlers do not receive `authContext` and do not enforce workspace scoping. A scoped agent in Workspace A can supply an arbitrary `workspaceId` parameter to search or retrieve knowledge graph nodes from Workspace B, bypassing workspace isolation boundaries.\n\nThis is a **cross-workspace data leakage** vulnerability affecting any deployment where multiple workspaces contain sensitive knowledge graph data and scoped agents are used.\n\n**Affected code:**\n- `packages/mcp/src/tools/knowledge.ts:146-169` (knowledge_search handler)\n- `packages/mcp/src/tools/knowledge.ts:244-283` (knowledge_get_node handler)\n- `packages/mcp/src/tool-scoping.ts:11` (both tools listed in SCOPED_TOOLS)\n\n**Contrast with correct implementation:** `knowledge_create_node` (same file, lines 334-357) properly receives `authContext` and overrides the user-supplied `workspaceId` for scoped callers.\n\n### Design Note\n\nCross-workspace knowledge sharing is a legitimate future feature — agents working across different repos may need to collaborate and share knowledge. However, this access should be **opt-in with explicit grants**, not an implicit bypass. The immediate fix locks scoped agents to their own workspace. A future design could introduce:\n- Workspace-level \"share knowledge with\" settings\n- A `cross_workspace` scope on scoped tokens\n- Explicit `workspaceIds` (plural) in the auth context\n\n### Patches\n\n**Fix:** Add `authContext` parameter to `knowledge_search` and `knowledge_get_node` handlers and enforce workspace scoping, matching the pattern in `knowledge_create_node`:\n```typescript\nconst resolvedWorkspaceId =\n  authContext?.type === \"scoped\"\n    ? authContext.workspaceId ?? \"\"\n    : workspaceId ?? \"\";\n```\n\nWhen cross-workspace collaboration is designed, this check can be relaxed intentionally with proper access controls.\n\n### Workarounds\n\nDo not use scoped agent tokens in multi-workspace deployments until patched. Alternatively, remove `knowledge_search` and `knowledge_get_node` from the `SCOPED_TOOLS` set in `tool-scoping.ts`.\n\n### References\n\n- CWE-284: Improper Access Control\n- File: `packages/mcp/src/tools/knowledge.ts`\n- File: `packages/mcp/src/tool-scoping.ts`",
            "references": [
                {
                    "reference_url": "https://github.com/nick-pape/grackle",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "8.6",
                            "scoring_system": "cvssv4",
                            "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N"
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/nick-pape/grackle"
                },
                {
                    "reference_url": "https://github.com/nick-pape/grackle/security/advisories/GHSA-647h-p824-99w7",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "HIGH",
                            "scoring_system": "cvssv3.1_qr",
                            "scoring_elements": ""
                        },
                        {
                            "value": "8.6",
                            "scoring_system": "cvssv4",
                            "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N"
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/nick-pape/grackle/security/advisories/GHSA-647h-p824-99w7"
                },
                {
                    "reference_url": "https://github.com/advisories/GHSA-647h-p824-99w7",
                    "reference_id": "GHSA-647h-p824-99w7",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "HIGH",
                            "scoring_system": "cvssv3.1_qr",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/advisories/GHSA-647h-p824-99w7"
                }
            ],
            "fixed_packages": [
                {
                    "url": "http://public2.vulnerablecode.io/api/packages/114139?format=api",
                    "purl": "pkg:npm/%40grackle-ai/mcp@0.70.2",
                    "is_vulnerable": false,
                    "affected_by_vulnerabilities": [],
                    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/%2540grackle-ai/mcp@0.70.2"
                }
            ],
            "aliases": [
                "GHSA-647h-p824-99w7"
            ],
            "risk_score": 4.0,
            "exploitability": "0.5",
            "weighted_severity": "8.0",
            "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-m9wj-e596-u3ca"
        }
    ],
    "fixing_vulnerabilities": [],
    "risk_score": "4.0",
    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/%2540grackle-ai/mcp@0.39.1"
}