CVE-2026-59254
6.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
Summary
n8n before 2.28.1 contains an information disclosure vulnerability where external secrets are incorrectly resolved in workflow node expressions outside credentials scope. Authenticated project editors can read plaintext external secret values by referencing them in node expressions without requiring explicit secrets access permissions.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| n8n | n8n | 0 < 2.28.1 | affected |
| n8n | n8n | 2.28.1 | unaffected |
| n8n | n8n | 0 < 2.27.4 | affected |
| n8n | n8n | 2.27.4 | unaffected |
Weaknesses
- CWE-639: Authorization Bypass Through User-Controlled Key
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-2434-3x6q-8r99
- https://www.vulncheck.com/advisories/n8n-external-secrets-disclosure-via-workflow-node-expressions
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.