Insertion of Sensitive Information into Log File Affecting n8n-mcp package, versions <2.47.13
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published28 Apr 2026
- disclosed25 Apr 2026
- creditMirr2
Introduced: 25 Apr 2026
CVE-2026-42282 (opens in a new tab)How to fix?
Upgrade n8n-mcp to version 2.47.13 or higher.
Overview
n8n-mcp is an Integration between n8n workflow automation and Model Context Protocol (MCP)
Affected versions of this package are vulnerable to Insertion of Sensitive Information into Log File via the request dispatcher and related logging. An attacker can obtain sensitive information, such as credentials or API keys, by accessing improperly redacted server logs.
Note: This is only exploitable if the application is running in HTTP transport mode and logs are accessible outside the trusted boundary.
Workaround
This vulnerability can be mitigated by restricting access to the HTTP port to trusted clients, limiting access to server logs, or switching to stdio transport mode.