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PUBLISHED

2025-12-26 22:15

MODIFIED

2025-12-26 22:15

CVSS_SCORE V3

7.1

EPSS (Prob. Exploit)

0.27%

Top 81.5%

DATA SOURCES:

NVD 🔗 2025-12-26 CVE PROJECT 🔗 2026-01-19 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-08 GITHUB 🔗 2026-11-04 OSV 🔗 2026-11-08

> DESCRIPTION

n8n is an open source workflow automation platform. Prior to version 2.0.0, in self-hosted n8n instances where the Code node runs in legacy (non-task-runner) JavaScript execution mode, authenticated users with workflow editing access can invoke internal helper functions from within the Code node. This allows a workflow editor to perform actions on the n8n host with the same privileges as the n8n process, including: reading files from the host filesystem (subject to any file-access restrictions configured on the instance and OS/container permissions), and writing files to the host filesystem (subject to the same restrictions). This issue has been patched in version 2.0.0. Workarounds for this issue involve limiting file operations by setting N8N_RESTRICT_FILE_ACCESS_TO to a dedicated directory (e.g., ~/.n8n-files) and ensure it contains no sensitive data, keeping N8N_BLOCK_FILE_ACCESS_TO_N8N_FILES=true (default) to block access to .n8n and user-defined config files, and disabling high-risk nodes (including the Code node) using NODES_EXCLUDE if workflow editors are not fully trusted.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

EXPLOITABILITY

2.8

IMPACT

4.2

> MÉTRIQUES CVSS DÉTAILLÉES

                CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
            

Métrique	Valeur	Interprétation
AV (Vecteur d'Attaque) Attack Vector	Network (N)	Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque) Attack Complexity	Low (L)	Peu de conditions requises pour exploiter
PR (Privilèges Requis) Privileges Required	Low (L)	Authentifié avec compte utilisateur basique
UI (Interaction Utilisateur) User Interaction	None (N)	Aucune interaction utilisateur nécessaire
S (Périmètre) Scope	Unchanged (U)	Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité) Confidentiality Impact	Low (L)	Divulgation limitée d'informations
I (Impact Intégrité) Integrity Impact	High (H)	Modification totale des données possible
A (Impact Disponibilité) Availability Impact	None (N)	Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité

Low

Divulgation limitée d'informations

Intégrité

High

Modification totale des données possible

Disponibilité

None

Aucune interruption de service

> WEAKNESSES

CWE-269 CWE-749

> CWE DETAILED DESCRIPTIONS

CWE-269: Improper Privilege Management - The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. | CWE-749: Exposed Dangerous Method or Function - The product provides an Applications Programming Interface (API) or similar interface for interaction with external actors, but the interface includes a dangerous method or function that is not properly restricted.

> GITHUB SECURITY ADVISORY

GHSA-j4p8-h8mh-rh8q HIGH

Self-hosted n8n has Legacy Code node that enables arbitrary file read/write

AFFECTED PACKAGES:

NPM / n8n

>= 1.2.1, < 2.0.0

Fixed in: 2.0.0

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Self-hosted n8n has Legacy Code node that enables arbitrary file read/write

AFFECTED PACKAGES:

Unknown / Unknown

1270 versions affected

ALIASES:

GHSA-j4p8-h8mh-rh8q

> HISTORIQUE DES MODIFICATIONS

Première apparition

26/12/2025 22:15

Source: NVD

📊 ENRICHISSEMENT 19/01/2026 17:38

CVEPROJECT

Champ modifié: CVE Project

Ancienne valeur:

Non

Nouvelle valeur:

Oui

📊 ENRICHISSEMENT 01/01/2026 06:01

CWE

Champ modifié: Description CWE