CVE-2026-54314
n8n: Denial of Service via ZIP decompression in webhook workflow
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-409 |
| Vendor | n8n-io |
| Product | n8n |
| Published | Jun 23, 2026 |
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Affected Versions
n8n-io / n8n
< 2.24.0