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criticalCVSS 9NVD status: Deferred

CVE-2026-103255

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 vali...

Componentn8n
Severitycritical (CVSS 9)
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Published (NVD)2026-10-01
Affected versions
< 1.123.80
read from the advisory text: NVD has not published CPE data yet
Fixed in1.123.80
WeaknessCWE-73
CISA KEVnot listed

NVD 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.

Does CVE-2026-103255 hit the version you run?Paste your docker-compose.yml, requirements.txt or package.json. The scanner checks your pinned versions against this CVE and every other one we track for n8n.
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What to do

  • Upgrade n8n to 1.123.80 or later.
  • Do not expose the component's API or UI to the internet without authentication in front of it.

Sources

Read more

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