n8n-io n8n up to 2.31.4/2.32.0 Expression Evaluation sandbox

Summaryinfo

A vulnerability was found in n8n-io n8n up to 2.31.4/2.32.0. It has been declared as critical. This impacts an unknown function of the component Expression Evaluation. Such manipulation leads to sandbox. This vulnerability is referenced as CVE-2026-72765. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in n8n-io n8n up to 2.31.4/2.32.0. Affected by this issue is some unknown processing of the component Expression Evaluation. The manipulation with an unknown input leads to a sandbox vulnerability. Using CWE to declare the problem leads to CWE-265. Impacted is confidentiality, integrity, and availability. CVE summarizes:

n8n before 2.31.5 and before 2.32.1 contain a sandbox escape vulnerability in expression evaluation. An authenticated user with permission to create or modify workflows can craft expressions using arrow-function bodies to bypass the expression sandbox, triggering system command execution on the host running n8n. The issue is fixed in versions 2.31.5 and 2.32.1.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-72765 since 08/10/2026. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1611.

Upgrading to version 2.31.5 or 2.32.1 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• n8n-io

Name

• n8n

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9
• 2.10
• 2.11
• 2.12
• 2.13
• 2.14
• 2.15
• 2.16
• 2.17
• 2.18
• 2.19
• 2.20
• 2.21
• 2.22
• 2.23
• 2.24
• 2.25
• 2.26
• 2.27
• 2.28
• 2.29
• 2.30
• 2.31
• 2.31.0
• 2.31.1
• 2.31.2
• 2.31.3
• 2.31.4
• 2.32.0

Website

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

CPE 2.3info

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CPE 2.2info

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