CVE-2026-27497
n8n has Potential Remote Code Execution via Merge Node
Description
n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, an authenticated user with permission to create or modify workflows could leverage the Merge node's SQL query mode to execute arbitrary code and write arbitrary files on the n8n server. The issues have been fixed in n8n versions 2.10.1, 2.9.3, and 1.123.22. Users should upgrade to one of these versions or later to remediate all known vulnerabilities. If upgrading is not immediately possible, administrators should consider the following temporary mitigations. Limit workflow creation and editing permissions to fully trusted users only, and/or disable the Merge node by adding `n8n-nodes-base.merge` to the `NODES_EXCLUDE` environment variable. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.
INFO
Published Date :
Feb. 25, 2026, 11:16 p.m.
Last Modified :
March 4, 2026, 3:35 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | CRITICAL | [email protected] |
Solution
- Upgrade n8n to version 2.10.1 or later.
- Limit workflow creation and editing permissions.
- Disable the Merge node using NODES_EXCLUDE.
- Apply the provided patches or updates.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-27497.
| URL | Resource |
|---|---|
| https://github.com/n8n-io/n8n/releases/tag/[email protected] | Release Notes |
| https://github.com/n8n-io/n8n/releases/tag/[email protected] | Release Notes |
| https://github.com/n8n-io/n8n/releases/tag/[email protected] | Release Notes |
| https://github.com/n8n-io/n8n/security/advisories/GHSA-wxx7-mcgf-j869 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-27497 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-27497
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-27497 vulnerability anywhere in the article.
-
The Hacker News
Critical n8n Flaws Allow Remote Code Execution and Exposure of Stored Credentials
Cybersecurity researchers have disclosed details of two now-patched security flaws in the n8n workflow automation platform, including two critical bugs that could result in arbitrary command execution ... Read more
-
Daily CyberSecurity
Automation at Risk: Triple 9.4 Severity RCE Flaws Threaten n8n Workflow Servers
n8n is a popular workflow automation platform that gives technical teams the flexibility of code with the speed of no-code. With 400+ integrations, native AI capabilities, and a fair-code license, n8n ... Read more
The following table lists the changes that have been made to the
CVE-2026-27497 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 04, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* versions up to (excluding) 1.123.22 *cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* versions from (including) 2.0.0 up to (excluding) 2.9.3 *cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* versions from (including) 2.10.0 up to (excluding) 2.10.1 Added Reference Type GitHub, Inc.: https://github.com/n8n-io/n8n/releases/tag/[email protected] Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/n8n-io/n8n/releases/tag/[email protected] Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/n8n-io/n8n/releases/tag/[email protected] Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/n8n-io/n8n/security/advisories/GHSA-wxx7-mcgf-j869 Types: Vendor Advisory -
New CVE Received by [email protected]
Feb. 25, 2026
Action Type Old Value New Value Added Description n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, an authenticated user with permission to create or modify workflows could leverage the Merge node's SQL query mode to execute arbitrary code and write arbitrary files on the n8n server. The issues have been fixed in n8n versions 2.10.1, 2.9.3, and 1.123.22. Users should upgrade to one of these versions or later to remediate all known vulnerabilities. If upgrading is not immediately possible, administrators should consider the following temporary mitigations. Limit workflow creation and editing permissions to fully trusted users only, and/or disable the Merge node by adding `n8n-nodes-base.merge` to the `NODES_EXCLUDE` environment variable. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-94 Added CWE CWE-89 Added Reference https://github.com/n8n-io/n8n/releases/tag/[email protected] Added Reference https://github.com/n8n-io/n8n/releases/tag/[email protected] Added Reference https://github.com/n8n-io/n8n/releases/tag/[email protected] Added Reference https://github.com/n8n-io/n8n/security/advisories/GHSA-wxx7-mcgf-j869