Authorization Bypass Vulnerability in n8n Workflow Automation Tool
CVE-2026-110853

7.1HIGH

Key Information:

Vendor

N8n-io

Status
N8n
Vendor
CVE Published:
14 October 2026

What is CVE-2026-110853?

The n8n automation tool prior to version 1.123.83 is vulnerable to an authorization bypass that permits authenticated users to impersonate a workflow's identity. By manipulating a trusted identifier in the Execute Sub-workflow inline JSON mode, attackers are able to access credentials and modify static data from workflows not associated with their accounts, thereby compromising the integrity and security of workflows.

Affected Version(s)

n8n 0 < 1.123.83

References

https://github.com/n8n-io/n8n/security/advisories/GHSA-86...
vendor-advisory
https://www.vulncheck.com/advisories/n8n-before-1.123.83-...
third-party-advisory

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

tr4ce-ju
.