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.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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Advisories
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Fixes
Solution
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Workaround
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References
History
Mon, 15 Jun 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
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Projects
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MITRE
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-06-15T18:52:34.777Z
Reserved: 2026-04-06T00:00:00.000Z
Link: CVE-2026-36537
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-06-15T20:16:25.907
Modified: 2026-06-15T20:16:25.907
Link: CVE-2026-36537
Redhat
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OpenCVE Enrichment
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Weaknesses
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