CVE Explorer

CVE-2026-41495

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

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5c4fac77aca126fc7ead3957f681a86508c5eb21c0129e0493ecfe9d6fd2e706

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"n8n-mcp","vendor":"czlonkowski","versions":[{"status":"affected","version":"< 2.47.11"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:f6b08bc2f57aeddbb5368022d23c5dff5db8f4354d6e33c20f7cc1dc3b9e0fb5 · sha256:6e4572814040a636… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/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:f6b08bc2f57aeddbb5368022d23c5dff5db8f4354d6e33c20f7cc1dc3b9e0fb5 · sha256:6e4572814040a636… · /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:f6b08bc2f57aeddbb5368022d23c5dff5db8f4354d6e33c20f7cc1dc3b9e0fb5 · sha256:6e4572814040a636… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.47.11","tags":["x_refsource_MISC"],"url":"https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.47.11"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:f6b08bc2f57aeddbb5368022d23c5dff5db8f4354d6e33c20f7cc1dc3b9e0fb5 · sha256:6e4572814040a636… · /containers/cna/references/1

{"name":"https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-pfm2-2mhg-8wpx","tags":["x_refsource_CONFIRM"],"url":"https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-pfm2-2mhg-8wpx"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:f6b08bc2f57aeddbb5368022d23c5dff5db8f4354d6e33c20f7cc1dc3b9e0fb5 · sha256:6e4572814040a636… · /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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