CVE-2026-59208 | BDVDB-2026-346648 Detail

Description#

n8n is an open source workflow automation platform. Prior to 2.27.4 and from 2.28.0 prior to 2.28.1, n8n instances configured with more than one trusted token-exchange issuer resolved external identities to local accounts using only the JWT sub claim and ignored the iss claim, allowing an attacker with a valid token from one trusted issuer and a sub matching a victim under another issuer to authenticate as that victim. This issue is fixed in versions 2.27.4 and 2.28.1.

Impact#

Weaknesses#

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Exploit#

History#

1. Version 12026-07-09Record published in the CVE List.
2. Version 22026-07-14Most recent update recorded in the CVE List.