What is CVE-2025-61917?

CVE-2025-61917 is a high-severity vulnerability in N8n, classified under Information Disclosure. CVSS score: 7.7/10. Published 2026-02-04.

How severe is CVE-2025-61917?

High severity. CVSS v3 base score is 7.7 out of 10.

Information disclosure in N8n

CVE-2025-61917

n8n is an open source workflow automation platform. From version 1.65.0 to before 1.114.3, the use of Buffer.allocUnsafe() and Buffer.allocUnsafeSlow() in the task runner allowed untrusted code to allocate uninitialized memory. Such uninitialized buffers could contain residual data from within the same Node.js process (for example, data from prior requests, tasks, secrets, or tokens), resulting in potential information disclosure. This issue has been patched in version 1.114.3.

Vulnerability class: Information Disclosure

EPSS: 0.004 (29.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

Affected products

N8n
N8n-io N8n — versions >= 1.65.0, < 1.114.3

Weakness classification (CWE)

References

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

Frequently asked questions

What is CVE-2025-61917?: CVE-2025-61917 is a high-severity vulnerability in N8n, classified under Information Disclosure. CVSS score: 7.7/10. Published 2026-02-04.
How severe is CVE-2025-61917?: High severity. CVSS v3 base score is 7.7 out of 10.