Critical severity · published Jun 23, 2026
CVE-2026-54310
n8n: SQL Injection in Postgres v1/TimesclaeDB Nodes
9.9
CVSS
0.5%
EPSS
No
On KEV
Description
n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, 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. This vulnerability is fixed in 2.25.7 and 2.26.2.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 46% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
N8
n8n · n8n-io
>= 2.26.0, < 2.26.2; < 2.25.7 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-54310
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-54310
Mitigation
https://github.com/n8n-io/n8n/security/advisories/GHSA-c37g-w77q-m4vp
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