What’s Vulnerable › Vulnerabilities
CVE-2026-54307: n8n: Credential Exfiltration via Permission Bypass
- Severity: critical (CVSS 9.6 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-06-23 · updated 2026-10-25
- Weakness: CWE-863
Description
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.
Affected products
- n8n-io n8n: before 1.123.55; from 2.0.0 before 2.25.7; from 2.26.0 before 2.26.2 — fixed in 1.123.55, 2.25.7, 2.26.2
How to fix
Upgrade to a fixed version: n8n-io n8n 1.123.55, 2.25.7, 2.26.2. Check the vendor advisory for mitigations.
References
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