CVE-2026-86996

n8n: Agent Workflow Tool Bypasses Sub-Workflow Caller Policy

Published: Sep 8, 2026Updated: Sep 10, 2026 Sources: CVE List NVDCWE-862

5.4MEDIUM

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:LConfidentiality

Low

I:LIntegrity

Low

A:NAvailability

None

Open in CVSS calculator →

Weaknesses

CWE-862

Affected Products

n8n-io

commercial·DEaka n8n

n8nOn-premWeb App

Cloud & SaaS / container-orchestration

n8n

oss-project

n8nSaaSWeb App

Cloud & SaaS / saas-application

Exploitability

Workaround Available

Is your org exposed to CVE-2026-86996?Request an assessment to establish which checks are appropriate for your systems. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques

Initial Access

View detailed technique mapping

References

https://github.com/n8n-io/n8n/security/advisories/GHSA-7hgx-277f-7vmg

github.com

https://github.com/n8n-io/n8n/releases/tag/n8n@2.37.7

github.com

https://github.com/n8n-io/n8n/releases/tag/n8n@2.38.2

github.com

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-86996 and every CVE in our database. Create a free account — no credit card required.

Create Free Account

Plain-language analysis

Impact assessment and exploitation scenario in plain English

Attack graph visualization

Interactive attack path and kill chain mapping

Exploit details & PoC links

ExploitDB, Metasploit, GitHub PoCs with direct links

Nuclei scanner templates

Ready-to-use vulnerability scanner templates

Full remediation guide

Patch instructions, workarounds, and compliance impact

Interactive AI chat

Ask questions about this vulnerability in natural language

Related vulnerabilities

Semantically similar CVEs and attack patterns

REST API & MCP access

Integrate vulnerability data into your workflows