PT-2026-50176 · Npm · N8N

Published 2026-06-16 · Updated 2026-06-16 · CVE-2026-54310

OSV

CVSS v3.1

9.9

Critical

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Impact

An authenticated user with permission to create or modify workflows could supply a crafted parameters to the TimescaleDB and/or legacy Postgres v1 node's allowing arbitrary SQL to be injected and executed against the connected database within the privileges of the configured database account.

Patches

The issue has been fixed in n8n versions 2.25.7, and 2.26.2. Users should upgrade to one of these versions or later to remediate the vulnerability.

Workarounds

If upgrading is not immediately possible, administrators should consider the following temporary mitigations:

• Limit workflow creation and editing permissions to fully trusted users only.
• Disable the Postgres and TimescaleDB node by adding n8n-nodes-base.postgres, n8n-nodes-base.timescaleDb to the NODES EXCLUDE environment variable.

These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

Fix

SQL injection

Weakness Enumeration

CWE-89

Related Identifiers

CVE-2026-54310

GHSA-C37G-W77Q-M4VP

Affected Products

N8N

References · 3

• https://osv.dev/vulnerability/GHSA-c37g-w77q-m4vp · Vendor Advisory
• https://github.com/n8n-io/n8n/security/advisories/GHSA-c37g-w77q-m4vp · Note
• https://github.com/n8n-io/n8n · Note