CVE-2026-27498Network attack vector

Authenticated command execution via writable Git configuration

Published Feb 25, 2026 · Updated Feb 25, 2026

Code injection in affected n8n releases allows remote authenticated users with workflow-editing rights to execute host commands. The Read/Write Files from Disk node accepted paths inside .git directories, allowing a crafted workflow to overwrite Git configuration before a Git operation triggers shell-command execution. Successful exploitation requires permission to create or modify workflows and runs arbitrary commands with the privileges of the n8n service.

CVSS severity9.0
Critical
EPSS probability0.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in affected n8n releases allows remote authenticated users with workflow-editing rights to execute host commands. The Read/Write Files from Disk node accepted paths inside .git directories, allowing a crafted workflow to overwrite Git configuration before a Git operation triggers shell-command execution. Successful exploitation requires permission to create or modify workflows and runs arbitrary commands with the privileges of the n8n service.

The record

CVE
CVE-2026-27498
Published
Feb 25, 2026
Updated
Feb 25, 2026
Vendor
n8n
Product
n8n
Classifications
CWE-94, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.123.8
  2. Affected versionversion=>= 2.0.0, < 2.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

n8n · n8nversion=< 1.123.8; version=>= 2.0.0, < 2.2.0

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.0GitHub, Inc.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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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