CVE-2026-107194: Sungrow Isolarcloud

Critical severity, CVSS 9.2. EPSS: 0.3% chance of exploitation in the next 30 days.

Sungrow iSolarCloud before 2026 allows authentication bypass and account takeover via "login_type":"5" in a login request, potentially leading to "local blackouts on the whole continent" in Europe. An email address for the user_account property is required; however, a user can view the email address associated with their parent organization.

Affected products

• Sungrow Isolarcloud: before 2026 (fixed in 2026)

Published 2026-10-07. Last modified 2026-10-10.