N8N N8N — CVE-2026-54307 (Critical)

Date Jun 23, 2026

Type Vendor advisory

Signal Critical vendor advisory

Vendor / Product N8N · N8N

CVE CVE-2026-54307

Critical vendor advisory CVE-2026-54307

Summary

n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, a member-level user with editor access to a shared workflow could reference credentials they do not own via specific public API endpoints. Credential ownership checks were only enforced partially leading to cross-user credential access. This issue affects instances where workflow sharing is enabled and at least one workflow has been shared with a member-level user as an Editor. This vulnerability is fixed in 1.123.55, 2.25.7, and 2.26.2.

Why it matters

This CVE carries a CRITICAL severity rating (CVSS 9.6) in N8N N8N. Patch or mitigate promptly. EPSS percentile: 24%.

Operator check

Review CVE-2026-54307 in your asset inventory. Apply patches per vendor guidance and verify N8N is not exposed. CVSS score: 9.6. EPSS probability: 0.3%; percentile: 24%.

Sources

NVD — CVE-2026-54307 Source reference

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.

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