132 lines
5.8 KiB
JSON
132 lines
5.8 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-45707",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-05-13T04:38:01.166Z",
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"datePublished": "2026-05-29T13:35:42.281Z",
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"dateUpdated": "2026-06-01T19:06:14.985Z"
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},
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"containers": {
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"cna": {
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"title": "n8n-MCP: Multi-tenant MCP requests fall back to process-level n8n credentials when tenant headers are absent or incomplete",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-284",
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"lang": "en",
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"description": "CWE-284: Improper Access Control",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 8.1,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-jxx9-px88-pj69",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-jxx9-px88-pj69"
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},
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{
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"name": "https://github.com/czlonkowski/n8n-mcp/commit/853015d0897be7cf2d9d4726de195c938e4395ab",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/czlonkowski/n8n-mcp/commit/853015d0897be7cf2d9d4726de195c938e4395ab"
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},
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{
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"name": "https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.51.2",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.51.2"
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}
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],
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"affected": [
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{
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"vendor": "czlonkowski",
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"product": "n8n-mcp",
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"versions": [
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{
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"version": "< 2.51.2",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-05-29T13:35:42.281Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "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."
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}
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],
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"source": {
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"advisory": "GHSA-jxx9-px88-pj69",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-06-01T19:05:28.776003Z",
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"id": "CVE-2026-45707",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-06-01T19:06:14.985Z"
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}
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}
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]
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}
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} |