CVE-2026-103253 n8n before 1.123.80, 2.39.6, and 2.40.1 SQL Injection via Oracle Database Drop Table
Attackers can inject SQL into n8n's Oracle Database node to execute arbitrary commands, requiring an upgrade to secure the workflow automation platform.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-103253?
CVE-2026-103253 is a high-severity SQL injection vulnerability in n8n-io n8n, published on 1 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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 an SQL injection vulnerability in the Oracle Database node's Delete Table Drop operation. Attackers can inject single quotes in the table or schema fields to append arbitrary SQL statements and execute DDL or DML commands against the connected database with the credential's privileges.
Weakness: CWE-89
Which versions are affected by CVE-2026-103253?
How do I fix CVE-2026-103253?
Upgrade to a fixed version.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-103253 being exploited?
There is no known exploitation of CVE-2026-103253 in the wild and no public exploit code.
Sources
Also known as GHSA-4p39-vh7m-r689, GHSA-4wf3-rgqr-xcp3, MINI-8v7j-xg9v-qcvp.