Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/70016?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/70016?format=api", "vulnerability_id": "VCID-pfg8-u5dk-13g1", "summary": "n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. Prior to 2.51.2, when ENABLE_MULTI_TENANT=true, the HTTP transport documents that the target n8n instance is selected per-request from x-n8n-url / x-n8n-key headers. Requests that omitted those headers — or supplied only one of them — silently fell back to the process-level N8N_API_URL / N8N_API_KEY credentials configured for the operator's own n8n instance. As a result, an authenticated MCP tenant could cause n8n management calls to execute against the operator's instance instead of its own. This affects HTTP-mode deployments of n8n-mcp that are run as a shared multi-tenant service. Single-tenant deployments (ENABLE_MULTI_TENANT unset or false) are not affected. This vulnerability is fixed in 2.51.2.", "aliases": [ { "alias": "CVE-2026-45707" }, { "alias": "GHSA-jxx9-px88-pj69" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/40954?format=api", "purl": "pkg:npm/n8n-mcp@2.51.2", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/n8n-mcp@2.51.2" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/40953?format=api", "purl": "pkg:npm/n8n-mcp@2.51.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-pfg8-u5dk-13g1" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/n8n-mcp@2.51.1" } ], "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-45707", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00033", "scoring_system": "epss", "scoring_elements": "0.10241", "published_at": "2026-06-14T12:55:00Z" }, { "value": "0.00033", "scoring_system": "epss", "scoring_elements": "0.10255", "published_at": "2026-06-13T12:55:00Z" }, { "value": "0.00033", "scoring_system": "epss", "scoring_elements": "0.10249", "published_at": "2026-06-12T12:55:00Z" }, { "value": "0.00033", "scoring_system": "epss", "scoring_elements": "0.102", "published_at": "2026-06-11T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-45707" }, { "reference_url": "https://github.com/czlonkowski/n8n-mcp", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.1", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/czlonkowski/n8n-mcp" }, { "reference_url": "https://github.com/czlonkowski/n8n-mcp/commit/853015d0897be7cf2d9d4726de195c938e4395ab", "reference_id": "853015d0897be7cf2d9d4726de195c938e4395ab", "reference_type": "", "scores": [ { "value": "8.1", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-06-01T19:05:28Z/" } ], "url": "https://github.com/czlonkowski/n8n-mcp/commit/853015d0897be7cf2d9d4726de195c938e4395ab" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45707", "reference_id": "CVE-2026-45707", "reference_type": "", "scores": [ { "value": "8.1", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45707" }, { "reference_url": "https://github.com/advisories/GHSA-jxx9-px88-pj69", "reference_id": "GHSA-jxx9-px88-pj69", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-jxx9-px88-pj69" }, { "reference_url": "https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-jxx9-px88-pj69", "reference_id": "GHSA-jxx9-px88-pj69", "reference_type": "", "scores": [ { "value": "8.1", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N" }, { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-06-01T19:05:28Z/" } ], "url": "https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-jxx9-px88-pj69" }, { "reference_url": "https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.51.2", "reference_id": "v2.51.2", "reference_type": "", "scores": [ { "value": "8.1", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-06-01T19:05:28Z/" } ], "url": "https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.51.2" } ], "weaknesses": [ { "cwe_id": 284, "name": "Improper Access Control", "description": "The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor." } ], "exploits": [], "severity_range_score": "7.0 - 8.9", "exploitability": "0.5", "weighted_severity": "8.0", "risk_score": 4.0, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-pfg8-u5dk-13g1" }