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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact High

Subsequent System Availability Impact High

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n8n-io n8n unaffected
Version Status Constraints
0 affected < 1.123.69
1.123.69 unaffected —
n8n-io n8n unaffected
Version Status Constraints
0 affected < 2.34.1
2.34.1 unaffected —
n8n-io n8n unaffected
Version Status Constraints
0 affected < 2.33.4
2.33.4 unaffected —

No data.

No data.

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Project Subscriptions

Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/n8n-io/n8n/security/advisories/GHSA-953p-jm2c-8h5j cve-icon cve-icon
https://www.vulncheck.com/advisories/n8n-before-nosql-injection-via-mongodb-node cve-icon cve-icon
History

Thu, 20 Aug 2026 11:45:00 +0000

Type Values Removed Values Added
Description 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.
Title n8n before 1.123.69 NoSQL Injection via MongoDB Node
First Time appeared N8n
N8n n8n
Weaknesses CWE-943
CPEs cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
Vendors & Products N8n
N8n n8n
References
Metrics cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-20T15:19:47.498Z

Reserved: 2026-08-20T10:51:39.783Z

Link: CVE-2026-77070

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-20T12:16:38.227

Modified: 2026-08-20T16:18:32.613

Link: CVE-2026-77070

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-20T21:30:05Z

Weaknesses