Filter injection in n8n Quick Base node Where parameter
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
n8n before 1.123.85, from 2.0.0 before 2.43.5, and from 2.44.0 before 2.44.1 is affected. The Quick Base node sends the Where filter to the Quick Base API as raw query text, so improper neutralization of special elements (CWE-943) lets untrusted input change the filter. A remote attacker who controls input such as webhook data used to build the filter can make Get Many return every record or Delete remove every record with the workflow credential's privileges.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
n8n before 1.123.85, 2.x before 2.43.5, and 2.44.x before 2.44.1 contains a filter injection vulnerability in the Quick Base node, which sends the Where filter to the Quick Base API as raw query text. Attackers supplying untrusted input such as webhook data used to build the filter can make Get Many return every record or Delete remove every record with the workflow credential's privileges.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Update n8n to version 1.123.85 on the 1.x line, 2.43.5 on the 2.x line before 2.44, or 2.44.1 on the 2.44 line.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA n8n (n8n-io) Fixed in 1.123.85
- Fix · CNA n8n (n8n-io) Fixed in 2.44.1
- Fix · CNA n8n (n8n-io) Fixed in 2.43.5
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
n8n-io n8n 2.43.5, 2.44.1
11 records Highest priority Priority LOW 11 LOW
Other records, highest priority first
- TI-2026-82163 Authorization bypass in n8n exposes Data Table rows of all projectsPriority LOW 39
- TI-2026-82162 Stored cross-site scripting in n8n webhook responsesPriority LOW 38
- TI-2026-82160 Regular expression DoS in n8n Read/Write Files nodePriority LOW 31
- Release ·
n8n-io n8n 1.123.85
10 records Highest priority Priority LOW 10 LOW
Other records, highest priority first
- TI-2026-82162 Stored cross-site scripting in n8n webhook responsesPriority LOW 38
- TI-2026-82160 Regular expression DoS in n8n Read/Write Files nodePriority LOW 31
- TI-2026-82155 OData filter injection in n8n Outlook and SharePoint nodesPriority LOW 30
Timeline
- 2026-10-28 Threatist record created from CVE-2026-118645
- 2026-10-28 Alias added: GHSA-6vpf-74v5-9qcm
- 2026-10-29 CISA SSVC decision points changed
- 2026-10-29 Priority changed: MEDIUM → LOW
References
More n8n vulnerabilities
- 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
Sources
- CVE-2026-118645 · CVE Program
- CVE-2026-118645 · NVD
- FIRST EPSS
- GHSA-6vpf-74v5-9qcm · GitHub Advisory Database · CC BY 4.0
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