CVE-2026-77084
Received Received - Intake

Code Execution in Git Node for n8n

Publication date: 2026-08-20

Last updated on: 2026-08-20

Assigner: VulnCheck

Description
n8n before 1.123.69 (and 2.x before 2.33.4 / 2.34.1) contains a code execution vulnerability in the Git node. The Git node executed certain repository-local git configuration values without neutralizing them, so any subsequent Git node operation against a repository containing a malicious value would execute it as the n8n process user. This is not reachable through the Git node's own configuration controls and requires a separate file-write vulnerability elsewhere to plant the malicious value.

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Meta Information

Published
2026-08-20
Last Modified
2026-08-20
Generated
2026-08-20
AI Q&A
2026-08-20
EPSS Evaluated
N/A
NVD
CVE-2026-77084
EUVD
EUVD-2026-63272

Affected Vendors & Products

Showing 8 associated CPEs
Vendor Product Version / Range
n8n n8n to 2.33.4 (exc)
n8n n8n to 2.34.1 (exc)
n8n n8n 1.123.67
n8n n8n 2.31.5
n8n n8n 2.32.1
n8n n8n to 1.123.69 (exc)
n8n n8n From 2.0.0 (inc) to 2.33.4 (exc)
n8n n8n From 2.34.1 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
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.

Attack-Flow Graph

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Executive Summary

CVE-2026-77084 is a high-severity remote code execution vulnerability in n8n versions before 1.123.69 and 2.x before 2.33.4/2.34.1. The Git node executes repository-local Git configuration values without neutralizing them, allowing malicious commands to run as the n8n process user. Exploitation requires a separate file-write vulnerability to inject the malicious configuration.

Detection Guidance

Check n8n version with 'n8n --version' or 'npm list -g n8n'. If using versions before 1.123.69, 2.33.4, or 2.34.1, the system is vulnerable. Inspect Git repositories for malicious configuration values like 'git config --local --list' to detect suspicious entries.

Impact Analysis

This vulnerability allows attackers to execute arbitrary code on the system running n8n as the n8n process user. This could lead to full system compromise, data theft, or unauthorized actions. The impact includes loss of confidentiality, integrity, and availability of the affected system.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, violating compliance requirements such as GDPR (data protection) or HIPAA (health information security). Organizations may face legal penalties, reputational damage, and loss of trust if exploited.

Mitigation Strategies

Upgrade n8n to versions 1.123.69 or later, 2.33.4, or 2.34.1. Disable the Git node if unused. Restrict access to trusted users only. Run n8n under a low-privilege user account to limit potential damage.

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