CVE-2026-27498

CRITICAL EPSS 49.2%
Published Feb 25, 20264mo ago · Modified Jun 17, 20261w ago
9.0 CVSS 4.0
Critical
Find Similar
Published Feb 25, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

Description

n8n is an open source workflow automation platform. Prior to versions 2.2.0 and 1.123.8, an authenticated user with permission to create or modify workflows could chain the Read/Write Files from Disk node with git operations to achieve remote code execution. By writing to specific configuration files and then triggering a git operation, the attacker could execute arbitrary shell commands on the n8n host. The issue has been fixed in n8n versions 2.2.0 and 1.123.8. Users should upgrade to one of these versions or later to remediate the vulnerability. 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 Read/Write Files from Disk node by adding `n8n-nodes-base.readWriteFile` to the `NODES_EXCLUDE` environment variable. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

CVSS Details

Base Score
9.0
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:P/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
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
49.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-94 Improper Control of Generation of Code (Code Injection) Injection

Affected Products 2

VendorProductVersionRange
n8nn8n* <1.123.8
n8nn8n*≥2.0.0  –  <2.2.0

References 5

  • github.com https://github.com/n8n-io/n8n/commit/97365caf253978ba8e46d7bc53fa7ac3b6f67b32
    Patch
  • github.com https://github.com/n8n-io/n8n/commit/e22acaab3dcb2004e5fe0bf9ef2db975bde61866
    Patch
  • github.com https://github.com/n8n-io/n8n/releases/tag/n8n@1.123.8
    Release Notes
  • github.com https://github.com/n8n-io/n8n/releases/tag/n8n@2.2.0
    Release Notes
  • github.com https://github.com/n8n-io/n8n/security/advisories/GHSA-x2mw-7j39-93xq
    Vendor Advisory

Remediation

  • github.com https://github.com/n8n-io/n8n/commit/97365caf253978ba8e46d7bc53fa7ac3b6f67b32
    Patch
  • github.com https://github.com/n8n-io/n8n/commit/e22acaab3dcb2004e5fe0bf9ef2db975bde61866
    Patch