EUVD-2026-90647
GHSA-4p39-vh7m-r689
Severity by source
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
AC:H reflects the specific vulnerable node/operation configuration; S:C and I:H/A:H because impact falls on the separate connected Oracle database, not n8n itself.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
5DescriptionCVE.org
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.
Articles & Coverage 1
AnalysisAI
SQL injection in the n8n Oracle Database node's Delete Table Drop operation lets an attacker break out of the table or schema identifier with a single quote and append arbitrary SQL, which then runs against the connected Oracle database with the privileges of the stored credential. Affected releases are n8n before 1.123.80, 2.0.0 through 2.39.5, and 2.40.0 (fixed in 2.39.6 and 2.40.1 respectively); the CVSS vector records PR:N, i.e. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an n8n workflow that uses the Oracle Database node specifically configured for the Delete Table Drop operation, with attacker-influenceable data reaching the table or schema name fields. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Multiple signals point to a real but conditional, lower-priority issue rather than a mass-exploitation threat. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Vendor-released patch: upgrade to n8n 1.123.80 (1.x line), 2.39.6 (2.0.0 through 2.39.5), or 2.40.1 (2.40.0), per the vendor advisory GHSA-4wf3-rgqr-xcp3 and the VulnCheck advisory. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory every n8n instance and record its exact version, then flag any workflow that uses the Oracle Database node's Delete Table Drop operation with table or schema values sourced from user input, webhooks, or other externally influenceable data; for those workflows, disable or pause the operation, and restrict network access to the n8n editor and API to trusted networks only. …
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External POC / Exploit Code
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