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                            CERT-Renater

                Note d'Information No. 2025/VULN891
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DATE                : 22/12/2025

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Systems running n8n versions prior to 1.120.4,
                                   1.121.1, 1.122.0.

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https://github.com/n8n-io/n8n/security/advisories/GHSA-v98v-ff95-f3cp
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Remote Code Execution via Expression Injection
Critical
csuermann published GHSA-v98v-ff95-f3cp Dec 19, 2025

Package
n8n (npm)

Affected versions
>= 0.211.0 < 1.120.4

Patched versions
1.120.4, 1.121.1, 1.122.0


Description

Impact

n8n contains a critical Remote Code Execution (RCE) vulnerability
in its workflow expression evaluation system. Under certain conditions,
expressions supplied by authenticated users during workflow
configuration may be evaluated in an execution context that is not
sufficiently isolated from the underlying runtime.

An authenticated attacker could abuse this behavior to execute arbitrary
code with the privileges of the n8n process. Successful exploitation may
lead to full compromise of the affected instance, including unauthorized
access to sensitive data, modification of workflows, and execution of
system-level operations.


Patches

This issue has been fixed in n8n v1.122.0.

Users are strongly advised to upgrade to version 1.122.0 or later, which
introduces additional safeguards to restrict expression evaluation.
Workarounds

If upgrading is not immediately possible, administrators should consider
the following temporary mitigations:

    Limit workflow creation and editing permissions to fully trusted users
only.
    Deploy n8n in a hardened environment with restricted operating system
privileges and network access to reduce the impact of potential
exploitation.

These workarounds do not fully eliminate the risk and should only be used
as short-term measures.


Severity
Critical

CVE ID
CVE-2025-68613

Weaknesses
Weakness CWE-913

Credits

    @fatihhcelik fatihhcelik Reporter



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