CVE-2026-54314 — n8n: Denial of Service via ZIP decompression in webhook workflow
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 enforc…
Published: 2026-06-23 · CVSS: 6.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7