VDB-344384 · CVE-2026-21893 · GHSA-7c4h-vh2m-743m

n8n-io n8n up to 1.120.2 Community Package Installation os command injection

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.8	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in n8n-io n8n up to 1.120.2. The impacted element is an unknown function of the component Community Package Installation Handler. Such manipulation leads to os command injection. This vulnerability is traded as CVE-2026-21893. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in n8n-io n8n up to 1.120.2. It has been rated as critical. Affected by this issue is an unknown code block of the component Community Package Installation Handler. The manipulation with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

n8n is an open source workflow automation platform. From version 0.187.0 to before 1.120.3, a command injection vulnerability was identified in n8n’s community package installation functionality. The issue allowed authenticated users with administrative permissions to execute arbitrary system commands on the n8n host under specific conditions. This issue has been patched in version 1.120.3.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-21893 since 01/05/2026. The exploitation is known to be easy. The attack may be launched remotely. Additional levels of successful authentication are needed for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1202.

The vulnerability scanner Nessus provides a plugin with the ID 298982 (n8n Node.js Package >= 0.187.0 < 1.120.3 Command Injection (CVE-2026-21893)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.120.3 eliminates this vulnerability. Applying the patch ae0669a736cc496beeb296e115267862727ae838 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (298982) and CERT Bund (WID-SEC-2026-0318). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

n8n n8n

Productinfo

Vendor

n8n-io

Name

Version

License

open-source

Website

Product: https://github.com/n8n-io/n8n/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.2
NVD Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 298982
Nessus Name: n8n Node.js Package >= 0.187.0 < 1.120.3 Command Injection (CVE-2026-21893)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: n8n 1.120.3
Patch: ae0669a736cc496beeb296e115267862727ae838

Timelineinfo

01/05/2026 CVE reserved
02/04/2026 +30 days Advisory disclosed
02/04/2026 +0 days VulDB entry created
02/20/2026 +16 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-7c4h-vh2m-743m
Status: Confirmed

CVE: CVE-2026-21893 (🔒)
GCVE (CVE): GCVE-0-2026-21893
GCVE (VulDB): GCVE-100-344384
CERT Bund: WID-SEC-2026-0318 - n8n: Mehrere Schwachstellen

Entryinfo

Created: 02/04/2026 20:01
Updated: 02/20/2026 18:31
Changes: 02/04/2026 20:01 (70), 02/05/2026 17:38 (7), 02/14/2026 05:13 (2), 02/20/2026 18:31 (12)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.