CVE-2026-54314 Details
Description
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.
A denial-of-service vulnerability has been identified in n8n versions prior to 2.24.0. The issue arises in the Compression node's Decompress operation, which unpacks attacker-controlled ZIP archives into memory without limiting the size of the decompressed output. This flaw allows an unauthenticated attacker to send a small compressed archive to a public webhook workflow, leading to memory exhaustion that causes the n8n process to terminate. As a result, all workflows in the same instance are disrupted.
Users should upgrade to n8n version 2.24.0 or later. The update introduces configurable limits on decompressed output size and ZIP entry count. If an immediate upgrade is not possible, administrators can temporarily disable the Compression node or restrict public webhook workflows that accept archive file uploads to authenticated endpoints only.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 24, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/n8n-io/n8n/security/advisories/GHSA-jqpw-qww5-cj4c | [email protected] | MitigationVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-409 | Improper Handling of Highly Compressed Data (Data Amplification) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| n8n n8n | < 2.24.0 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 25, 2026 | Initial Analysis | [email protected] |
| Jun 24, 2026 | CVE Modified | CISA-ADP |
| Jun 23, 2026 | New CVE Received | [email protected] |