CVE-2026-107194

Sungrow iSolarCloud before 2026-08-25 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.

• https://jakkaru.de/articles/sungrow-vulnerability-exposes-gigawatts-worldwide
• https://www.sungrowpower.com/en/products/cloud-software/isolarcloud
• https://www.linkedin.com/posts/patrick-lamplmair-0aa66715b_otsecurity-gridsecurity-solarenergy-activity-7514199420771393536-HAi3
• https://www.pv-magazine.com/2026/10/08/sungrow-patches-isolarcloud-vulnerability-after-security-researchers-gain-access/
• https://www.pv-tech.org/sungrow-patches-cloud-vulnerability-affecting-solar-inverters/
• https://www.sungrowpower.com/en/login-bypass-vulnerability-in-sungrow-isolarcloud