CVE-2026-36537 | BDVDB-2026-340295 Detail

Description#

ThingsBoard v4.3.0.1 is vulnerable to an authentication bypass during the OAuth authorization code exchange. The application improperly trusts user-supplied identity data within the user parameter of the /login/oauth2/code/ endpoint. By manipulating the email address in this JSON object, a remote attacker can bypass authentication and gain full access to any existing user account on the platform without possessing the target user's credentials. This results in a complete account takeover.

Impact#

Weaknesses#

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Exploit#

History#

1. Version 12026-06-15Record published in the CVE List.
2. Version 22026-06-16Most recent update recorded in the CVE List.