What is CVE-2026-103253?

CVE-2026-103253 is a high-severity vulnerability in N8n-Io N8n, classified under SQL Injection. CVSS score: 8.7/10. Published 2026-10-01.

How severe is CVE-2026-103253?

High severity. CVSS v3 base score is 8.7 out of 10.

SQL Injection in N8n-Io N8n

CVE-2026-103253

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.

Vulnerability class: SQL Injection

Published 2026-10-01 · last modified 2026-10-01.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

N8n-Io N8n

Weakness classification (CWE)

CWE-89 — SQL Injection

References

github.com/n8n-io/n8n/security/advisories/GHSA-4wf3-rgqr-xcp3 (vendor-advisory)
www.vulncheck.com/advisories/n8n-before-1.123.80-2.39.6-and-2.40.1-sql-injectio… (third-party-advisory)

Frequently asked questions

What is CVE-2026-103253?: CVE-2026-103253 is a high-severity vulnerability in N8n-Io N8n, classified under SQL Injection. CVSS score: 8.7/10. Published 2026-10-01.
How severe is CVE-2026-103253?: High severity. CVSS v3 base score is 8.7 out of 10.