n8n: SQL Injection in Postgres v1/TimesclaeDB Nodes
Medium9.9CVE-2026-54310 · Published Jun 16, 2026 · updated Jul 20, 2026
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| n8n npm | >= 2.26.0, < 2.26.2 | 2.26.2 |
| < 2.25.7 | 2.25.7 |
Details and references
## 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.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Severity from
- GitHub (reviewed advisory)
- Weakness
- CWE-89
- Also known as
- CVE-2026-54310
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