CVE-2026-33660Network attack vector

Authenticated code execution via unrestricted AlaSQL statements

Published Mar 25, 2026 · Updated Mar 25, 2026

Code injection in n8n before 1.123.27, 2.0.0-rc.0 through 2.13.2, and 2.14.0 allows remote authenticated users to execute code. The Merge node's Combine by SQL mode passes attacker-controlled statements into an AlaSQL sandbox that fails to block file-access and code-execution primitives. Workflow creation or modification permission is required; exploitation reads host files and executes code with the n8n process's privileges.

CVSS severity9.4
Critical
EPSS probability0.95%
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 n8n before 1.123.27, 2.0.0-rc.0 through 2.13.2, and 2.14.0 allows remote authenticated users to execute code. The Merge node's Combine by SQL mode passes attacker-controlled statements into an AlaSQL sandbox that fails to block file-access and code-execution primitives. Workflow creation or modification permission is required; exploitation reads host files and executes code with the n8n process's privileges.

The record

CVE
CVE-2026-33660
Published
Mar 25, 2026
Updated
Mar 25, 2026
Vendor
n8n
Product
n8n
Classifications
CWE-89, CWE-94, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 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=< 1.123.27
  2. Affected versionversion=>= 2.0.0-rc.0, < 2.13.3
  3. Affected versionversion== 2.14.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

n8n · n8nversion=< 1.123.27; version=>= 2.0.0-rc.0, < 2.13.3; version== 2.14.0

Published CVSS scores

9.4GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
8.8NISTCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A: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-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application

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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