CVE-2025-61917

HighCVSS 7.7/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.7/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Weakness enumeration

CWE-200 CWE-668

Affected software

Vendor	Product	Versions
n8n-io	n8n	>= 1.65.0, < 1.114.3

References

https://github.com/n8n-io/n8n/commit/2c4c2953199733c791f739a40879ae31ca129abaPatch
https://github.com/n8n-io/n8n/security/advisories/GHSA-49mx-fj45-q3p6Mitigation, Vendor Advisory

Timeline

Published: Feb 4, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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