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CVE-2026-119408 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

n8n before 2.42.6, 2.43.x before 2.43.3, and 3.x before 3.0.1 contains a remote code execution vulnerability via deprecated Function, Function Item, and LangChain Code nodes running outside task runner isolation. Authenticated users who can create, modify, or import workflows naming these hidden node types can execute JavaScript in the n8n main process.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://abraxaslabs.tech/research/n8n-function-vm2	CISA-ADP	ExploitTechnical Analysis
https://abraxaslabs.tech/research/n8n-function-vm2	[email protected]	ExploitTechnical Analysis
https://github.com/n8n-io/n8n	[email protected]	ProductSource CodeVendor
https://github.com/n8n-io/n8n/blob/[email protected]/packages/nodes-base/nodes/Function/Function.node.ts#L167	[email protected]	Source CodeVendor
https://github.com/n8n-io/n8n/commit/ea8417e29ad6f8b981d9a04b17283d5d77f2b5bb	[email protected]	Source CodeVendor
https://github.com/n8n-io/n8n/releases/tag/[email protected]	[email protected]	Release NotesVendor
https://github.com/n8n-io/n8n/releases/tag/[email protected]	[email protected]	Release NotesVendor
https://github.com/n8n-io/n8n/releases/tag/[email protected]	[email protected]	Release NotesVendor
https://github.com/n8n-io/n8n/security/advisories/GHSA-9p7v-45m2-wxgj	[email protected]	AdvisoryRemedyVendor
https://www.vulncheck.com/advisories/n8n-before-2.42.6-2.43.3-and-3.0.1-code-execution-outside-task-runner-isolation-via-deprecated-function-nodes	[email protected]	AdvisoryBundle

see all 10 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-653	Improper Isolation or Compartmentalization	[email protected]

Affected Products

Product	Versions
n8n	< 2.42.6 (semver) < 2.43.3 (semver) < 3.0.1 (semver)
CPE cpe:2.3:a:n8n:n8n::::::node.js::* Remediation Upgrade: 2.42.6moderate effort Upgrade: 2.43.3moderate effort Upgrade: 3.0.1moderate effort Workaround:low effort Add `n8n-nodes-base.function`, `n8n-nodes-base.functionItem`, and `@n8n/n8n-nodes-langchain.code` to the `NODES_EXCLUDE` environment variable to prevent these nodes from being used. Mitigation:low effort Limit workflow creation and editing permissions to fully trusted users only.

Product

Versions

n8n

< 2.42.6 (semver)

< 2.43.3 (semver)

< 3.0.1 (semver)

CPE

cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*

Remediation

Upgrade: 2.42.6moderate effort
Upgrade: 2.43.3moderate effort
Upgrade: 3.0.1moderate effort
Workaround:low effort
Add `n8n-nodes-base.function`, `n8n-nodes-base.functionItem`, and `@n8n/n8n-nodes-langchain.code` to the `NODES_EXCLUDE` environment variable to prevent these nodes from being used.
Mitigation:low effort
Limit workflow creation and editing permissions to fully trusted users only.

Change History

2 change records found show changes

Date	Action	Recorded By
Nov 5, 2026	CVE Modified	CISA-ADP
Oct 30, 2026	New CVE Received	[email protected]