CVE-2026-59207

Description

n8n is an open source workflow automation platform. Prior to 2.27.4 and 2.28.1, the AI Agents feature did not enforce the Allowed HTTP Request Domains restriction configured on credentials when an MCP tool was pointed at an arbitrary URL, allowing a member-level user with use-only access to a shared credential to send its secret to an external server they control. This issue is fixed in versions 2.27.4 and 2.28.1.

PUBLISHED Reserved 2026-07-02 | Published 2026-07-09 | Updated 2026-07-09 | Assigner GitHub_M

Problem types

CWE-693: Protection Mechanism Failure

Product status

References

github.com/...io/n8n/security/advisories/GHSA-h44j-f5r5-ph73

github.com/n8n-io/n8n/releases/tag/n8n@2.27.4

github.com/n8n-io/n8n/releases/tag/n8n@2.28.1

cve.org (CVE-2026-59207)

nvd.nist.gov (CVE-2026-59207)

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