---
id: CVE-2026-107194
title: >-
  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
summary: >-
  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 p…
severity: critical
cvss: 9.2
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:H/SC:H/SI:H/SA:H/S:P'
cwe:
  - CWE-288
vendor: Sungrow
product: iSolarCloud
affected:
  - iSolarCloud < 2026
published: '2026-10-07'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T14:47:21.140'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107194'
references:
  - url: >-
      https://jakkaru.de/articles/sungrow-vulnerability-exposes-gigawatts-worldwide
    label: cve@mitre.org
  - url: 'https://www.sungrowpower.com/en/products/cloud-software/isolarcloud'
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
cvssSource: cna
ingestedAt: '2026-10-07T14:33:21.952Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.