Medium severity · published Sep 8, 2026
CVE-2026-86996
n8n: Agent Workflow Tool Bypasses Sub-Workflow Caller Policy
5.4
CVSS
0.3%
EPSS
No
On KEV
Description
n8n is an open source workflow automation platform. Prior to 2.37.7 and 2.38.2, the workflow setting named This workflow can be called by was enforced by the Execute Workflow node but not when a workflow was attached to an Agent as a tool. A user able to build an Agent could invoke a restricted workflow and read its returned data. The affected path is packages/cli/src/modules/agents/tools/workflow-tool-factory.ts, where executeWorkflow omitted SubworkflowPolicyChecker.checkForProject. This issue is fixed in versions 2.37.7 and 2.38.2.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
N8
n8n · n8n-io
< 2.37.7; >= 2.38.0, < 2.38.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-86996
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-86996
Release Notes
https://github.com/n8n-io/n8n/releases/tag/n8n@2.37.7
Release Notes
https://github.com/n8n-io/n8n/releases/tag/n8n@2.38.2
Mitigation
https://github.com/n8n-io/n8n/security/advisories/GHSA-7hgx-277f-7vmg
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