High severity8.5GHSA Advisory· Published Jun 23, 2026· Updated Jun 25, 2026
CVE-2026-54312
CVE-2026-54312
Description
n8n is an open source workflow automation platform. Prior to 2.24.0, an authenticated user with permission to create or modify workflows could achieve global prototype pollution via the Microsoft SQL node by supplying a crafted value as the table parameter. This pollutes Object.prototype process-wide for the lifetime of the n8n server process, causing application-wide validation failures and rendering the n8n instance completely non-functional until restarted. This vulnerability is fixed in 2.24.0.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
n8nnpm | < 2.24.0 | 2.24.0 |
Affected products
1Patches
Vulnerability mechanics
References
3- github.com/advisories/GHSA-x6p3-m6h9-fx7rghsaADVISORY
- github.com/n8n-io/n8n/security/advisories/GHSA-x6p3-m6h9-fx7rnvdMitigationVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-54312ghsaADVISORY
News mentions
1- n8n: 16 CVEs Disclosed in Single Batch — Credential Leaks, Prototype Pollution, and Sandbox EscapeVypr Intelligence · Jun 16, 2026