AI agent vulnerability · n8n

GHSA-mwq7-vcmc-cm4q: Duplicate Advisory: SSO Instance-Role Provisioning Allows Privilege Escalation to Instance Owner

highCVSS 4.0 7.7

This advisory was withdrawn on Jul 22, 2026. The publisher no longer considers it a valid vulnerability.

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-35q8-9mj6-wjmf. This link is maintained to preserve external references. Original Description n8n versions before 1.123.64, 2.29.8, and 2.30.1 contain a privilege escalation vulnerability in Enterprise SSO instance-role provisioning.

Published Jul 22, 2026

Affected packages

n8n

Ecosystem: npm
Affected: < 1.123.64
Fixed in: No patched version yet
Check: npm ls n8n

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-35q8-9mj6-wjmf. This link is maintained to preserve external references.

Original Description

n8n versions before 1.123.64, 2.29.8, and 2.30.1 contain a privilege escalation vulnerability in Enterprise SSO instance-role provisioning. The provisioning path maps an IdP-asserted role claim to an n8n global role but does not prevent assignment of the global:owner role (unlike the token-exchange identity path, which rejects it). An SSO-authenticated user whose instance-role claim resolves to global:owner is provisioned as instance owner, gaining full administrative control over workflows, credentials, users, and instance configuration. Exploitation requires that Enterprise SSO is configured, instance-role provisioning is enabled via N8N_SSO_SCOPES_PROVISION_INSTANCE_ROLE (disabled by default), and the attacker controls the instance-role claim value issued by the IdP.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

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