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CVE-2026-42282

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. I
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7eb380ac21763ca109d681e6e40e3024961d401df82ea7a4e36c291035eabcc0
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"n8n-mcp","vendor":"czlonkowski","versions":[{"status":"affected","version":"< 2.47.13"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f08b566fc1314d935e19e891544fc2c1d655095f17de3bbe604ffb8e9963adc2 · sha256:e2a6ca398cba30a7… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f08b566fc1314d935e19e891544fc2c1d655095f17de3bbe604ffb8e9963adc2 · sha256:e2a6ca398cba30a7… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-532","description":"CWE-532: Insertion of Sensitive Information into Log File","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f08b566fc1314d935e19e891544fc2c1d655095f17de3bbe604ffb8e9963adc2 · sha256:e2a6ca398cba30a7… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/czlonkowski/n8n-mcp/commit/59b665bda36797823df238aeaf20adb862c9f451","tags":["x_refsource_MISC"],"url":"https://github.com/czlonkowski/n8n-mcp/commit/59b665bda36797823df238aeaf20adb862c9f451"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f08b566fc1314d935e19e891544fc2c1d655095f17de3bbe604ffb8e9963adc2 · sha256:e2a6ca398cba30a7… · /containers/cna/references/1
{"name":"https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.47.13","tags":["x_refsource_MISC"],"url":"https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.47.13"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f08b566fc1314d935e19e891544fc2c1d655095f17de3bbe604ffb8e9963adc2 · sha256:e2a6ca398cba30a7… · /containers/cna/references/2
{"name":"https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-wg4g-395p-mqv3","tags":["x_refsource_CONFIRM"],"url":"https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-wg4g-395p-mqv3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f08b566fc1314d935e19e891544fc2c1d655095f17de3bbe604ffb8e9963adc2 · sha256:e2a6ca398cba30a7… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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