n8n before 1.123.69 NoSQL Injection via MongoDB Node
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 1.123.69, 2.33.4, and 2.34.1 contains a NoSQL injection vulnerability in the MongoDB node's Find, Delete, and Aggregate operations, which parse the Query parameter as JSON after expression resolution without sanitizing MongoDB operators. An attacker who can influence the resolved query (e.g., via externally-controlled data) can inject operators such as $ne or $where, turning an intended single-document lookup into full-collection disclosure, full-collection deletion, or other operations on the database server.
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| n8n | n8n | before 1.123.69 | 1.123.69 | Patch available | CNA |
| n8n | n8n | 2.34.0 to before 2.34.1 | 2.34.1 | Patch available | CNA |
| n8n | n8n | 2.0.0 to before 2.33.4 | 2.33.4 | Patch available | CNA |
Remediation
- Fix · CNA n8n (n8n-io) Fixed in 1.123.69
- Fix · CNA n8n (n8n-io) Fixed in 2.34.1
- Fix · CNA n8n (n8n-io) Fixed in 2.33.4
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
n8n-io n8n 2.33.4, 2.34.1
17 records Highest priority Priority MEDIUM 2 MEDIUM, 15 LOW
Other records, highest priority first
- TI-2026-53821 n8n before 2.34.1 Remote Code Execution via Path TraversalPriority MEDIUM 41
- TI-2026-53833 n8n before 1.123.69 Arbitrary File Read and Write via SnowflakePriority MEDIUM 40
- TI-2026-53832 n8n before 2.34.1 Authorization Bypass via Custom Role DeletionPriority LOW 39
- Release ·
n8n-io n8n 1.123.69
13 records Highest priority Priority MEDIUM 1 MEDIUM, 12 LOW
Other records, highest priority first
- TI-2026-53833 n8n before 1.123.69 Arbitrary File Read and Write via SnowflakePriority MEDIUM 40
- TI-2026-53825 n8n before 1.123.69 Stored XSS via Form Completion PagePriority LOW 38
- TI-2026-53837 n8n before 1.123.69 Remote Code Execution via Git Node Configuration ValuesPriority LOW 37
Timeline
- 2026-10-02 Threatist record created from CVE-2026-77070
- 2026-10-03 Alias added: GHSA-4x9q-xqfh-jh4j
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-2025-35293 An arbitrary file upload vulnerability in the Chat Trigger component of N8N v1.95.3… CVSS 3.1HIGH 8.8
- TI-2023-12275 The n8n package 0.218.0 for Node.js allows Escalation of Privileges. CVSS 3.1HIGH 8.8
Sources
- CVE-2026-77070 · CVE Program
- CVE-2026-77070 · NVD
- FIRST EPSS
- GHSA-4x9q-xqfh-jh4j · GitHub Advisory Database · CC BY 4.0
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