What is CVE-2026-54314?

CVE-2026-54314 is a high-severity vulnerability in N8n, classified under Improper Handling of Highly Compressed Data (Data Amplification). CVSS score: 7.5/10. Published 2026-06-23.

How severe is CVE-2026-54314?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in N8n

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 att…

EPSS: 0.004 (30.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

N8n
N8n-io N8n — versions < 2.24.0

Weakness classification (CWE)

CWE-409 — Improper Handling of Highly Compressed Data (Data Amplification)

References

security-advisories@github.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-54314?: CVE-2026-54314 is a high-severity vulnerability in N8n, classified under Improper Handling of Highly Compressed Data (Data Amplification). CVSS score: 7.5/10. Published 2026-06-23.
How severe is CVE-2026-54314?: High severity. CVSS v3 base score is 7.5 out of 10.