NPM: n8n: Cross-Issuer Token Exchange Account Binding via Subject-Only Identity Resolution

NPM: n8n: Cross-Issuer Token Exchange Account Binding via Subject-Only Identity Resolution vulnerability discovered by ? in WordPress Npm n8n versions 2.27.4...

n8n: Cross-Issuer Token Exchange Account Binding via Subject-Only Identity Resolution

Impact When an n8n instance is configured with more than one trusted token-exchange issuer, external identities are resolved to local accounts using only the JWT sub claim, ignoring the issuer iss. As a result, two different issuers that emit the same subject value map to the same local account. ...