TI-2026-74530 Aliases CVE-2026-110840

SQL injection in n8n Microsoft SQL node via Query field

LOW 37CWE-89Published 2026-10-14 · Updated 2026-10-15

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: Present
Impact type: SQL injection
Confidentiality · integrity · availability: Low · None · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-89.

Summary

n8n versions before 2.41.4 and from 2.42.0 before 2.42.1 are affected. The version 1 Microsoft SQL node inserts Query field values directly into SQL text without parameterisation, which is an SQL injection flaw (CWE-89). When a workflow passes untrusted input such as webhook fields into the Query field, an unauthenticated external caller can run arbitrary SQL against the connected database with the stored credential's privileges.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

n8n before 2.41.4 and 2.42.x before 2.42.1 contains an SQL injection vulnerability in version 1 of the Microsoft SQL node, which substitutes Query field expression values directly into SQL text without parameterisation. When a workflow binds untrusted input such as webhook fields to the Query field, unauthenticated external callers can execute arbitrary SQL against the connected database with the stored credential's privileges.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00292 21st percentileScored 2026-11-07

Fix Fixed n8n (n8n-io): 2.41.4, 2.42.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
n8n	n8n	before 2.41.4; 2.42.0 to before 2.42.1	2.41.4, 2.42.1	Patch available	CNA

n8n Vendorn8n Affected before 2.41.4; 2.42.0 to before 2.42.1 Fixed in 2.41.4, 2.42.1 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:n8n:n8n::::::::	—	—	n8n

cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:* Versions — — ·n8n

Remediation

Upgrade n8n to version 2.41.4 or to version 2.42.1.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Fix · CNA n8n (n8n-io) Fixed in 2.41.4, 2.42.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-10-14
n8n-io n8n 2.41.4, 2.42.1
6 records Highest priority Priority LOW 6 LOW
Other records, highest priority first
- TI-2026-74536 Signature bypass in n8n Send-and-Wait waiting-webhook endpointPriority LOW 39
- TI-2026-74533 Unbounded OAuth client creation in n8n lets attackers fill diskPriority LOW 35
- TI-2026-74532 Prototype pollution in n8n MCP tool enables owner account takeoverPriority LOW 35
Show all 6 records →

Timeline

2026-10-15 Threatist record created from CVE-2026-110840
2026-10-15 CISA SSVC decision points changed
2026-10-15 Priority changed: MEDIUM → LOW

References

Advisory 1

GitHub Security Advisory (GHSA-5qpp-pqww-h7fp)

TI-2025-42131 n8n Vulnerable to Remote Code Execution via Expression Injection KEVCVSS 3.1CRITICAL 10.0
TI-2026-17560 n8n Vulnerable to Unauthenticated File Access via Improper Webhook Request Handling CVSS 3.1CRITICAL 10.0
TI-2026-01167 Authenticated users can bypass the Expression sandbox mechanism to achieve full remote… CVSS 3.1CRITICAL 9.9
TI-2026-00644 Sandbox escape in n8n Python task runner allows for arbitrary code execution on the underlying host. CVSS 3.1CRITICAL 9.9
TI-2026-82991 Code execution in n8n via deprecated Function nodes CVSS 4.0HIGH 8.7
TI-2025-35293 An arbitrary file upload vulnerability in the Chat Trigger component of N8N v1.95.3… CVSS 3.1HIGH 8.8

See all 233 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences