| Component | n8n |
| Severity | high (CVSS 7.5) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Published (NVD) | 2026-06-23 |
| Last modified | 2026-06-25 |
| Affected versions | n8n < 2.24.0 |
| Fixed in | 2.24.0 |
| Weakness | CWE-409 |
| CISA KEV | not listed |
NVD 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.
What to do
- Upgrade n8n to
2.24.0or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
Read more
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