Exposure of Data Element to Wrong Session Affecting n8n package, versions <2.25.7-r0
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-MINIMOSLATEST-N8N-17371018
- published18 Jun 2026
- disclosed23 Jun 2026
Introduced: 18 Jun 2026
CVE-2026-54311 (opens in a new tab)How to fix?
Upgrade Minimos:latest n8n to version 2.25.7-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.
n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, an authenticated user with permission to create or modify workflows could pollute the sandbox used by the Merge node's SQL Query mode. Because the sandbox context was cached and reused across all workflow executions on the instance, prototype mutations introduced by one user's workflow persist into subsequent Merge SQL executions belonging to other users or projects. This allowed a low-privileged attacker to intercept workflow data processed by other users on the same instance. This issue only affects multi-user n8n instances where more than one user has permission to create and execute workflows containing the Merge node in SQL Query mode. This vulnerability is fixed in 2.25.7 and 2.26.2.