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CVE

CVE-2026-54310

n8n: SQL Injection in Postgres v1/TimesclaeDB Nodes
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CVE

CVE-2026-54310

n8n: SQL Injection in Postgres v1/TimesclaeDB Nodes

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
-
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://github.com/n8n-io/n8n/security/advisories/GHSA-c37g-w77q-m4vp, https://github.com/n8n-io/n8n

Severity

9.9

CVSS Score
0
10

Basic Information

Base CVSS
9.9
EPSS Probability
0%
EPSS Percentile
0%
Introduced Version
2.26.0,0
Fix Available
2.26.2,2.25.7

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