Arbitrary Code Injection Affecting @n8n/task-runner package, versions <1.59.16>=2.0.0 <2.9.1>=2.10.0 <2.10.1
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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- published26 Feb 2026
- disclosed25 Feb 2026
- creditc0rydoras
Introduced: 25 Feb 2026
CVE-2026-27495 (opens in a new tab)How to fix?
Upgrade @n8n/task-runner to version 1.59.16, 2.9.1, 2.10.1 or higher.
Overview
Affected versions of this package are vulnerable to Arbitrary Code Injection. An attacker can execute arbitrary code outside the intended sandbox boundary by creating or modifying workflows after authenticating with sufficient permissions.
Workaround
This vulnerability can be mitigated by limiting workflow creation and editing permissions to fully trusted users only, and by using external runner mode (N8N_RUNNERS_MODE=external) to reduce the impact.