CVE-2026-3449 Affecting n8n package, versions <2.26.4-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.11% (2nd percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-N8N-17295449
  • published11 Jun 2026
  • disclosed3 Mar 2026

Introduced: 3 Mar 2026

CVE-2026-3449  (opens in a new tab)

How to fix?

Upgrade Minimos:latest n8n to version 2.26.4-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream n8n package and not the n8n package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

Versions of the package @tootallnate/once before 3.0.1 are vulnerable to Incorrect Control Flow Scoping in promise resolving when AbortSignal option is used. The Promise remains in a permanently pending state after the signal is aborted, causing any await or .then() usage to hang indefinitely. This can cause a control-flow leak that can lead to stalled requests, blocked workers, or degraded application availability.

CVSS Base Scores

version 3.1