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 Euro
Sungrow iSolarCloud
CVSS
9.2CriticalExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.42%Chance of exploitation activity in the next 30 days, higher than 35% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 2026-08-25iSolarCloudCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
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.
Text from CVE List
Affected versions 1
- iSolarCloudaffected: all versions before 2026-08-25CVE List
References 6
- linkedin.com/posts/patrick-lamplmair-0aa66715b_otsecurity-gridsecurity-solarenergy-activity-7514199420771393536-HAi3Advisoryvia CVE List
- pv-magazine.com/2026/10/08/sungrow-patches-isolarcloud-vulnerability-after-security-researchers-gain-access/Advisoryvia CVE List
- sungrowpower.com/en/products/cloud-software/isolarcloudReferencevia CVE List
- jakkaru.de/articles/sungrow-vulnerability-exposes-gigawatts-worldwideReferencevia CVE List
- sungrowpower.com/en/login-bypass-vulnerability-in-sungrow-isolarcloudReferencevia CVE List
- pv-tech.org/sungrow-patches-cloud-vulnerability-affecting-solar-inverters/Referencevia CVE List