CVE-2026-118649
Published:October 28, 2026
Updated:October 30, 2026
n8n before 2.43.5 and 2.44.x before 2.44.1 accepts a client-supplied workflow ID and caches each workflow's owner project in memory by that ID, so a crafted ID such as proto makes the Data Table project check match every project. An authenticated member who can create and run workflows can list, read, modify, and delete Data Table rows in all projects of the instance.
Affected Packages
https://github.com/n8n-io/n8n.git (GITHUB):
Affected version(s) >=n8n@2.2.0 <n8n@2.43.5Fix Suggestion:
Update to version n8n@2.43.5https://github.com/n8n-io/n8n.git (GITHUB):
Affected version(s) =n8n@2.44.0 <n8n@2.44.1Fix Suggestion:
Update to version n8n@2.44.1n8n (NPM):
Affected version(s) >=2.2.0 <2.43.5Fix Suggestion:
Update to version 2.43.5n8n (NPM):
Affected version(s) =2.44.0 <2.44.1Fix Suggestion:
Update to version 2.44.1@n8n/backend-services (NPM):
Affected version(s) >=1.3.0 <1.3.3Fix Suggestion:
Update to version 1.3.3@n8n/backend-services (NPM):
Affected version(s) =1.4.0 <1.4.1Fix Suggestion:
Update to version 1.4.1Additional Notes
The description of this vulnerability differs from MITRE.
Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
LOW
Weakness Type (CWE)
Improperly Controlled Modification of Object Prototype Attributes
EPSS
Base Score:
0.27