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krogoth@infosec.pub

n8n Token Exchange Flaw Could Let Attackers Log In as Users From Another Issuer (thehackernews.com)

submitted 6 days ago by lemmydev2@infosec.pub to c/pulse_of_truth@infosec.pub

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n8n, the workflow automation platform, handed out the wrong accounts at login. On Enterprise instances configured to trust more than one external token issuer, it matched an incoming JWT to a local user on the sub claim alone and ignored iss.

A valid token from issuer A carrying a sub that belongs to someone under issuer B logged you in as them. Their password never

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