Use of Uninitialized Resource Affecting @n8n/task-runner package, versions <1.50.2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-N8NTASKRUNNER-15223969
- published5 Feb 2026
- disclosed4 Feb 2026
- creditUnknown
Introduced: 4 Feb 2026
CVE-2025-61917 (opens in a new tab)How to fix?
Upgrade @n8n/task-runner to version 1.50.2 or higher.
Overview
Affected versions of this package are vulnerable to Use of Uninitialized Resource via the Buffer.allocUnsafe and Buffer.allocUnsafeSlow functions in the task runner process. An attacker can access sensitive in-process memory contents by executing untrusted code that allocates uninitialized buffers. This is only exploitable if Task Runners are enabled using the N8N_RUNNERS_ENABLED environment variable and the Code Node is enabled.
Workaround
This vulnerability can be mitigated by disabling the Code Node via the NODES_EXCLUDE environment variable or by running Task Runners in external mode to isolate untrusted code execution in a separate sidecar container.