| Component | n8n |
| Severity | high (CVSS 7.7) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
| Published (NVD) | 2026-02-04 |
| Last modified | 2026-06-17 |
| Affected versions | n8n >= 1.65.0, < 1.114.3 |
| Fixed in | 1.114.3 |
| Weakness | CWE-200CWE-668 |
| CISA KEV | not listed |
NVD description
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.
What to do
- Upgrade n8n to
1.114.3or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2025-61917
- https://github.com/n8n-io/n8n/security/advisories/GHSA-49mx-fj45-q3p6
- https://github.com/n8n-io/n8n/commit/2c4c2953199733c791f739a40879ae31ca129aba
Read more
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