{"url":"http://public2.vulnerablecode.io/api/packages/999936?format=json","purl":"pkg:npm/n8n-mcp@2.42.3","type":"npm","namespace":"","name":"n8n-mcp","version":"2.42.3","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":"2.50.2","latest_non_vulnerable_version":"2.51.3","affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/70585?format=json","vulnerability_id":"VCID-5pdq-116p-f7a8","summary":"n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. Prior to version 2.47.13, when n8n-mcp runs in HTTP transport mode, authenticated MCP tools/call requests had their full arguments and JSON-RPC params written to server logs by the request dispatcher and several sibling code paths before any redaction. When a tool call carries credential material — most notably n8n_manage_credentials.data — the raw values can be persisted in logs. In deployments where logs are collected, forwarded to external systems, or viewable outside the request trust boundary (shared log storage, SIEM pipelines, support/ops access), this can result in disclosure of: bearer tokens and OAuth credentials sent through n8n_manage_credentials, per-tenant API keys and webhook auth headers embedded in tool arguments, arbitrary secret-bearing payloads passed to any MCP tool. The issue requires authentication (AUTH_TOKEN accepted by the server), so unauthenticated callers cannot trigger it; the runtime exposure is also reduced by an existing console-silencing layer in HTTP mode, but that layer is fragile and the values are still constructed and passed into the logger. This issue has been patched in version 2.47.13.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-42282","reference_id":"","reference_type":"","scores":[{"value":"0.00073","scoring_system":"epss","scoring_elements":"0.22235","published_at":"2026-06-11T12:55:00Z"},{"value":"0.00073","scoring_system":"epss","scoring_elements":"0.22419","published_at":"2026-06-14T12:55:00Z"},{"value":"0.00073","scoring_system":"epss","scoring_elements":"0.22426","published_at":"2026-06-12T12:55:00Z"},{"value":"0.00073","scoring_system":"epss","scoring_elements":"0.2244","published_at":"2026-06-13T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-42282"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp","reference_id":"","reference_type":"","scores":[{"value":"4.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/czlonkowski/n8n-mcp"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42282","reference_id":"","reference_type":"","scores":[{"value":"4.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42282"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp/commit/59b665bda36797823df238aeaf20adb862c9f451","reference_id":"59b665bda36797823df238aeaf20adb862c9f451","reference_type":"","scores":[{"value":"4.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","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/2026-05-12T12:47:00Z/"}],"url":"https://github.com/czlonkowski/n8n-mcp/commit/59b665bda36797823df238aeaf20adb862c9f451"},{"reference_url":"https://github.com/advisories/GHSA-wg4g-395p-mqv3","reference_id":"GHSA-wg4g-395p-mqv3","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-wg4g-395p-mqv3"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-wg4g-395p-mqv3","reference_id":"GHSA-wg4g-395p-mqv3","reference_type":"","scores":[{"value":"4.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"MODERATE","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/2026-05-12T12:47:00Z/"}],"url":"https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-wg4g-395p-mqv3"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.47.13","reference_id":"v2.47.13","reference_type":"","scores":[{"value":"4.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","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/2026-05-12T12:47:00Z/"}],"url":"https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.47.13"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/373885?format=json","purl":"pkg:npm/n8n-mcp@2.47.13","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-41cy-qhar-d7ab"},{"vulnerability":"VCID-97fb-ukcd-nbf7"},{"vulnerability":"VCID-fcdh-t5cn-67h5"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/n8n-mcp@2.47.13"}],"aliases":["CVE-2026-42282","GHSA-wg4g-395p-mqv3"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-5pdq-116p-f7a8"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/359758?format=json","vulnerability_id":"VCID-8mvs-f1b1-kkcc","summary":"n8n-mcp has unauthenticated session termination and information disclosure in HTTP transport\n### Summary\n\nSeveral HTTP transport endpoints in n8n-mcp lacked proper authentication, and the health check endpoint exposed sensitive operational metadata without credentials.\n\n### Impact\n\nAn unauthenticated attacker with network access to the n8n-mcp HTTP server could disrupt active MCP sessions and gather information useful for further attacks.\n\n### Patches\n\nFixed in **v2.47.6**. All MCP session endpoints now require Bearer authentication. The health check endpoint has been reduced to a minimal liveness response.\n\n### Workarounds\n\nIf you cannot upgrade immediately:\n\n- **Restrict network access** to the HTTP server using firewall rules, reverse proxy IP allowlists, or a VPN so that only trusted clients can reach it.\n- **Use stdio mode** (`MCP_MODE=stdio`) instead of HTTP mode. The stdio transport does not expose any HTTP endpoints and is unaffected by this vulnerability.\n\nUpgrading to v2.47.6 is still strongly recommended.\n\n### Credit\n\nReported by @yotampe-pluto.","references":[{"reference_url":"https://github.com/czlonkowski/n8n-mcp","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/czlonkowski/n8n-mcp"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp/commit/ca9d4b3df6419b8338983be98f7940400f78bde3","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/czlonkowski/n8n-mcp/commit/ca9d4b3df6419b8338983be98f7940400f78bde3"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.47.6","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.47.6"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-75hx-xj24-mqrw","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H"},{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-75hx-xj24-mqrw"},{"reference_url":"https://github.com/advisories/GHSA-75hx-xj24-mqrw","reference_id":"GHSA-75hx-xj24-mqrw","reference_type":"","scores":[{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-75hx-xj24-mqrw"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/373292?format=json","purl":"pkg:npm/n8n-mcp@2.47.6","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-41cy-qhar-d7ab"},{"vulnerability":"VCID-5pdq-116p-f7a8"},{"vulnerability":"VCID-97fb-ukcd-nbf7"},{"vulnerability":"VCID-fcdh-t5cn-67h5"},{"vulnerability":"VCID-n5d3-3cem-7fgd"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/n8n-mcp@2.47.6"}],"aliases":["GHSA-75hx-xj24-mqrw"],"risk_score":4.0,"exploitability":"0.5","weighted_severity":"8.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-8mvs-f1b1-kkcc"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/360308?format=json","vulnerability_id":"VCID-97fb-ukcd-nbf7","summary":"n8n-mcp affected by path traversal, redirect-following SSRF, and telemetry payload exposure\n## Impact\n\n`n8n-mcp` versions before 2.50.1 contained three independently-reported issues affecting deployments that run the n8n API integration:\n\n1. **Caller-supplied identifiers were not validated before being used as URL path segments** by the n8n API client. An authenticated MCP caller passing a crafted workflow id could cause outbound requests carrying the configured n8n API key to land on other same-origin endpoints, bypassing handler-level access controls (including `DISABLED_TOOLS`).\n\n2. **Validated webhook, form, and chat trigger URLs followed redirects.** A URL that passed initial validation could redirect the outbound request to a host that would otherwise have been rejected, with the response body returned to the caller. Reachable as non-blind SSRF over authenticated MCP calls.\n\n3. **Mutation telemetry stored unredacted operation payloads.** On instances running with the default opt-in telemetry, partial-update operation diffs were uploaded without redaction. Operation values can carry the same node-parameter values the workflow contains, including bearer tokens, API keys, and webhook secrets.\n\n## Severity\n\nCVSS 8.3 (HIGH). Exploitation requires an authenticated MCP caller and an n8n API integration configured with an n8n API key.\n\n## Patched versions\n\nUpgrade to `n8n-mcp >= 2.50.1`.\n\n## Workarounds\n\n- For issues (1) and (2): restrict network access to the HTTP transport (firewall, reverse-proxy ACL, or VPN) so only trusted callers can reach the MCP HTTP port; or switch to stdio mode, which exposes no HTTP surface for these issues.\n- For issue (3): set `N8N_MCP_TELEMETRY_DISABLED=true` in the environment before starting the server, or run `npx n8n-mcp telemetry disable` once.\n\n## Credit\n\nReported by @cybercraftsolutionsllc.","references":[{"reference_url":"https://github.com/czlonkowski/n8n-mcp","reference_id":"","reference_type":"","scores":[{"value":"8.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/czlonkowski/n8n-mcp"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp/commit/1cfe9c6bddb4b1634e6e23323c18ea35fd196999","reference_id":"","reference_type":"","scores":[{"value":"8.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/czlonkowski/n8n-mcp/commit/1cfe9c6bddb4b1634e6e23323c18ea35fd196999"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.50.1","reference_id":"","reference_type":"","scores":[{"value":"8.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.50.1"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-8g7g-hmwm-6rv2","reference_id":"","reference_type":"","scores":[{"value":"8.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L"},{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-8g7g-hmwm-6rv2"},{"reference_url":"https://github.com/advisories/GHSA-8g7g-hmwm-6rv2","reference_id":"GHSA-8g7g-hmwm-6rv2","reference_type":"","scores":[{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-8g7g-hmwm-6rv2"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/375536?format=json","purl":"pkg:npm/n8n-mcp@2.50.1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-fcdh-t5cn-67h5"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/n8n-mcp@2.50.1"}],"aliases":["GHSA-8g7g-hmwm-6rv2"],"risk_score":4.0,"exploitability":"0.5","weighted_severity":"8.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-97fb-ukcd-nbf7"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/72861?format=json","vulnerability_id":"VCID-dhup-9pja-5uem","summary":"n8n-MCP is a Model Context Protocol (MCP) server that provides AI assistants with comprehensive access to n8n node documentation, properties, and operations. Prior to 2.47.4, an authenticated Server-Side Request Forgery in n8n-mcp allows a caller holding a valid AUTH_TOKEN to cause the server to issue HTTP requests to arbitrary URLs supplied through multi-tenant HTTP headers. Response bodies are reflected back through JSON-RPC, so an attacker can read the contents of any URL the server can reach — including cloud instance metadata endpoints (AWS IMDS, GCP, Azure, Alibaba, Oracle), internal network services, and any other host the server process has network access to. The primary at-risk deployments are multi-tenant HTTP installations where more than one operator can present a valid AUTH_TOKEN, or where a token is shared with less-trusted clients. Single-tenant stdio deployments and HTTP deployments without multi-tenant headers are not affected. This vulnerability is fixed in 2.47.4.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-39974","reference_id":"","reference_type":"","scores":[{"value":"0.00013","scoring_system":"epss","scoring_elements":"0.02103","published_at":"2026-06-11T12:55:00Z"},{"value":"0.00013","scoring_system":"epss","scoring_elements":"0.02112","published_at":"2026-06-14T12:55:00Z"},{"value":"0.00013","scoring_system":"epss","scoring_elements":"0.02105","published_at":"2026-06-12T12:55:00Z"},{"value":"0.00013","scoring_system":"epss","scoring_elements":"0.02102","published_at":"2026-06-13T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-39974"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp","reference_id":"","reference_type":"","scores":[{"value":"8.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/czlonkowski/n8n-mcp"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-39974","reference_id":"","reference_type":"","scores":[{"value":"8.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-39974"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp/commit/d9d847f230923d96e0857ccecf3a4dedcc9b0096","reference_id":"d9d847f230923d96e0857ccecf3a4dedcc9b0096","reference_type":"","scores":[{"value":"8.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/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/2026-04-13T20:09:16Z/"}],"url":"https://github.com/czlonkowski/n8n-mcp/commit/d9d847f230923d96e0857ccecf3a4dedcc9b0096"},{"reference_url":"https://github.com/advisories/GHSA-4ggg-h7ph-26qr","reference_id":"GHSA-4ggg-h7ph-26qr","reference_type":"","scores":[{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-4ggg-h7ph-26qr"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-4ggg-h7ph-26qr","reference_id":"GHSA-4ggg-h7ph-26qr","reference_type":"","scores":[{"value":"8.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/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/2026-04-13T20:09:16Z/"}],"url":"https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-4ggg-h7ph-26qr"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.47.4","reference_id":"v2.47.4","reference_type":"","scores":[{"value":"8.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/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/2026-04-13T20:09:16Z/"}],"url":"https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.47.4"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/374056?format=json","purl":"pkg:npm/n8n-mcp@2.47.4","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-41cy-qhar-d7ab"},{"vulnerability":"VCID-5pdq-116p-f7a8"},{"vulnerability":"VCID-8mvs-f1b1-kkcc"},{"vulnerability":"VCID-97fb-ukcd-nbf7"},{"vulnerability":"VCID-fcdh-t5cn-67h5"},{"vulnerability":"VCID-n5d3-3cem-7fgd"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/n8n-mcp@2.47.4"}],"aliases":["CVE-2026-39974","GHSA-4ggg-h7ph-26qr"],"risk_score":4.0,"exploitability":"0.5","weighted_severity":"8.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-dhup-9pja-5uem"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/67622?format=json","vulnerability_id":"VCID-fcdh-t5cn-67h5","summary":"n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. From version 2.18.7 to before version 2.50.2, there is an authenticated server-side request forgery vulnerability affecting the webhook trigger tools, the n8n API client (N8N_API_URL), and per-request URLs supplied via the x-n8n-url header in multi-tenant HTTP mode. This issue has been patched in version 2.50.2.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-44694","reference_id":"","reference_type":"","scores":[{"value":"0.00017","scoring_system":"epss","scoring_elements":"0.04475","published_at":"2026-06-11T12:55:00Z"},{"value":"0.00017","scoring_system":"epss","scoring_elements":"0.04458","published_at":"2026-06-14T12:55:00Z"},{"value":"0.00017","scoring_system":"epss","scoring_elements":"0.04478","published_at":"2026-06-12T12:55:00Z"},{"value":"0.00017","scoring_system":"epss","scoring_elements":"0.04463","published_at":"2026-06-13T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-44694"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp","reference_id":"","reference_type":"","scores":[{"value":"7.2","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:H/SI:L/SA:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/czlonkowski/n8n-mcp"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44694","reference_id":"","reference_type":"","scores":[{"value":"7.2","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:H/SI:L/SA:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44694"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp/commit/bcaba839409d470abeb4a6ad9b361b553a1098eb","reference_id":"bcaba839409d470abeb4a6ad9b361b553a1098eb","reference_type":"","scores":[{"value":"7.2","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:H/SI:L/SA:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-05-12T02:05:45Z/"}],"url":"https://github.com/czlonkowski/n8n-mcp/commit/bcaba839409d470abeb4a6ad9b361b553a1098eb"},{"reference_url":"https://github.com/advisories/GHSA-cmrh-wvq6-wm9r","reference_id":"GHSA-cmrh-wvq6-wm9r","reference_type":"","scores":[{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-cmrh-wvq6-wm9r"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-cmrh-wvq6-wm9r","reference_id":"GHSA-cmrh-wvq6-wm9r","reference_type":"","scores":[{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"7.2","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:H/SI:L/SA:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-05-12T02:05:45Z/"}],"url":"https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-cmrh-wvq6-wm9r"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.50.2","reference_id":"v2.50.2","reference_type":"","scores":[{"value":"7.2","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:H/SI:L/SA:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-05-12T02:05:45Z/"}],"url":"https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.50.2"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/376061?format=json","purl":"pkg:npm/n8n-mcp@2.50.2","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/n8n-mcp@2.50.2"}],"aliases":["CVE-2026-44694","GHSA-cmrh-wvq6-wm9r"],"risk_score":4.0,"exploitability":"0.5","weighted_severity":"8.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-fcdh-t5cn-67h5"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/80711?format=json","vulnerability_id":"VCID-n5d3-3cem-7fgd","summary":"n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. Prior to version 2.47.11, when n8n-mcp runs in HTTP transport mode, incoming requests to the POST /mcp endpoint had their request metadata written to server logs regardless of the authentication outcome. In deployments where logs are collected, forwarded to external systems, or viewable outside the request trust boundary (shared log storage, SIEM pipelines, support/ops access), this can result in disclosure of: bearer tokens from the Authorization header, per-tenant API keys from the, x-n8n-key header in multi-tenant setups, JSON-RPC request payloads sent to the MCP endpoint. Access control itself was not bypassed — unauthenticated requests were correctly rejected with 401 Unauthorized — but sensitive values from those rejected requests could still be persisted in logs. This issue has been patched in version 2.47.11.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-41495","reference_id":"","reference_type":"","scores":[{"value":"0.00088","scoring_system":"epss","scoring_elements":"0.25375","published_at":"2026-06-14T12:55:00Z"},{"value":"0.00088","scoring_system":"epss","scoring_elements":"0.2539","published_at":"2026-06-13T12:55:00Z"},{"value":"0.00088","scoring_system":"epss","scoring_elements":"0.25373","published_at":"2026-06-12T12:55:00Z"},{"value":"0.00088","scoring_system":"epss","scoring_elements":"0.25176","published_at":"2026-06-11T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-41495"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/czlonkowski/n8n-mcp"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41495","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41495"},{"reference_url":"https://github.com/advisories/GHSA-pfm2-2mhg-8wpx","reference_id":"GHSA-pfm2-2mhg-8wpx","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-pfm2-2mhg-8wpx"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-pfm2-2mhg-8wpx","reference_id":"GHSA-pfm2-2mhg-8wpx","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-05-13T17:17:26Z/"}],"url":"https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-pfm2-2mhg-8wpx"},{"reference_url":"https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.47.11","reference_id":"v2.47.11","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-05-13T17:17:26Z/"}],"url":"https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.47.11"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/373511?format=json","purl":"pkg:npm/n8n-mcp@2.47.11","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-41cy-qhar-d7ab"},{"vulnerability":"VCID-5pdq-116p-f7a8"},{"vulnerability":"VCID-97fb-ukcd-nbf7"},{"vulnerability":"VCID-fcdh-t5cn-67h5"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/n8n-mcp@2.47.11"}],"aliases":["CVE-2026-41495","GHSA-pfm2-2mhg-8wpx"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-n5d3-3cem-7fgd"}],"fixing_vulnerabilities":[],"risk_score":"4.0","resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/n8n-mcp@2.42.3"}