High 7.1Published Jul 9, 2026

CVE-2026-59207n8n: "Allowed HTTP Request Domains" Restriction Bypass via AI Agents MCP Connector

Updated under an hour ago (Oct 27, 2026, 11:20 AM ET)

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It affects n8n-io n8n and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for n8n-io n8n

Exploited in the last 30 days

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.

CVSS: 7.1 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
Weakness (CWE): CWE-693
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Jul 9, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

n8n-io n8n n8n_io:n8n (from the name)	from 2.28.0, < 2.28.1; before 2.27.4	CNA record
n8n n8n n8n:n8n	before 2.27.4; 2.28.0	NVD

References

References

https://github.com/n8n-io/n8n/security/advisories/GHSA-h44j-f5r5-ph73	x-refsource-confirm, vendor-advisory
https://github.com/n8n-io/n8n/releases/tag/n8n%402.27.4	x-refsource-misc, release-notes
https://github.com/n8n-io/n8n/releases/tag/n8n%402.28.1	x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.