Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Sungrow iSolarCloud
Default version status: unaffected
0 to < 2026-08-25affected
References
- https://www.sungrowpower.com/en/products/cloud-software/isolarcloud ↗
- https://jakkaru.de/articles/sungrow-vulnerability-exposes-gigawatts-worldwide ↗
- https://www.sungrowpower.com/en/login-bypass-vulnerability-in-sungrow-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/ ↗