n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a path traversal vulnerability in the Supabase node where the tableId parameter is inserted into request paths without validation. Attackers can exploit workflows binding tableId to untrusted input to traverse to Auth and Storage APIs using the administrative serviceRole key, bypassing Row Level Security and enabling unauthorized data access and modification.
Metrics
Affected Vendors & Products
References
History
Thu, 01 Oct 2026 20:30:00 +0000
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| Metrics |
ssvc
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Thu, 01 Oct 2026 11:00:00 +0000
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| Description | n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a path traversal vulnerability in the Supabase node where the tableId parameter is inserted into request paths without validation. Attackers can exploit workflows binding tableId to untrusted input to traverse to Auth and Storage APIs using the administrative serviceRole key, bypassing Row Level Security and enabling unauthorized data access and modification. | |
| Title | n8n before 1.123.80, 2.39.6, and 2.40.1 Path Traversal and Query Injection via Supabase | |
| First Time appeared |
N8n
N8n n8n |
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| Weaknesses | CWE-73 | |
| CPEs | cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:* | |
| Vendors & Products |
N8n
N8n n8n |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-10-01T10:42:00.052Z
Updated: 2026-10-01T19:25:38.454Z
Reserved: 2026-09-30T10:55:39.869Z
Link: CVE-2026-103255
Updated: 2026-10-01T19:25:34.777Z
Status : Deferred
Published: 2026-10-01T11:17:19.717
Modified: 2026-10-01T20:17:22.840
Link: CVE-2026-103255
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