CVE-2026-54314

n8n is an open source workflow automation platform. Prior to 2.24.0, the Compression node's Decompress operation expanded attacker-controlled archives into memory without enforcing limits on decompressed output size. An unauthenticated attacker could send a small compressed archive to a public webhook workflow using this node, causing the n8n process to terminate due to memory exhaustion and disrupting all workflows in the same instance. This vulnerability is fixed in 2.24.0.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/n8n-io/n8n/security/advisories/GHSA-jqpw-qww5-cj4c	Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*

History

26 Oct 2026, 11:10

Type	Values Removed	Values Added
Summary		(es) n8n es una plataforma de automatización de flujos de trabajo de código abierto. Antes de 2.24.0, la operación Decompress del nodo Compression expandía archivos controlados por el atacante en la memoria sin aplicar límites en el tamaño de la salida descomprimida. Un atacante no autenticado podría enviar un pequeño archivo comprimido a un flujo de trabajo de webhook público usando este nodo, causando que el proceso de n8n terminara debido al agotamiento de la memoria y interrumpiendo todos los flujos de trabajo en la misma instancia. Esta vulnerabilidad está corregida en 2.24.0.

Information

Published : 2026-06-23 16:17

Updated : 2026-10-26 11:10

NVD link : CVE-2026-54314

Mitre link : CVE-2026-54314

CVE.ORG link : CVE-2026-54314

JSON object : View

Products Affected

n8n

n8n

CWE

CWE-409

Improper Handling of Highly Compressed Data (Data Amplification)

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