CVE-2026-28008: Miniorange OAuth Single Sign On – SSO OAuth Client

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Unauthenticated Broken Authentication in OAuth Single Sign On – SSO (OAuth Client) <= 7.0.0 versions.

Affected products

• Miniorange OAuth Single Sign On – SSO OAuth Client: up to and including 7.0.0

Published 2026-08-13. Last modified 2026-08-14.