GHSA-mwq7-vcmc-cm4qHigh▾ TwilightDuplicate Advisory: SSO Instance-Role Provisioning Allows Privilege Escalation to Instance Owner
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0 · exploitation 0
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This advisory has been withdrawn because it is a duplicate of GHSA-35q8-9mj6-wjmf. This link is maintained to preserve external references.
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.
n8n < 1.123.64Refer to the advisory for the patched release.
Connected by shared product, vendor, weakness, or advisory.
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