What is CVE-2026-36537?

CVE-2026-36537 is a critical-severity vulnerability in N/a, classified under Authentication Bypass by Spoofing. CVSS score: 9.8/10. Published 2026-06-15.

How severe is CVE-2026-36537?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in N/a

CVE-2026-36537

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 ma…

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

N/a — versions n/a

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

cve@mitre.org

Frequently asked questions

What is CVE-2026-36537?: CVE-2026-36537 is a critical-severity vulnerability in N/a, classified under Authentication Bypass by Spoofing. CVSS score: 9.8/10. Published 2026-06-15.
How severe is CVE-2026-36537?: Critical severity. CVSS v3 base score is 9.8 out of 10.