【Security Advisory】Directory Listing vulnerability in Sungrow iSolarCloud (SGSA-202608-0029)
Publish Date: 20261111
Advisory ID: SGSA-202608-0029
Product: iSolarCloud
CVE ID: /
Severity: Medium
Date: 2026-11-11
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Description
The developer platform of Sungrow iSolarCloud is affected by a broken object-level authorization (BOLA) vulnerability in one of its API endpoints. By invoking this endpoint, an installer account can improperly retrieve API application information belonging to other unrelated companies.
Affected Versions
Vulnerable: The vulnerability was fully remediated on October 9, 2026; the system before this date carried this security exposure.
Not Affected: Following the remediation deployment on October 9, 2026, the system is no longer vulnerable to this flaw.
Vulnerability Rating
CVSS（4.0）：8.6/High/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
The scoring is based on the CVSS 4.0 standard. The scoring criteria can be referenced at (https://www.first.org/cvss/calculator/4.0)
Mitigation and Remediation
Recommended Action: The iSolarCloud has been upgraded and repaired as of October 9, 2026, No action is required from customers.
Patch Release: N/A.
Temporary Fix: N/A.
Acknowledgments
This vulnerability was discovered and reported by Levin Schober.
Contact information
For security issues regarding Sungrow products and solutions, please report to Sungrow psirt@sungrowpower.com.
Revision History
Version | Date | Description |
V1.0 | 2026-11-11 | Initial release |
Statement
All software updates, patches, and documentation provided by Sungrow Power Supply Co., Ltd. are the proprietary work of Sungrow. These materials may only be used for product maintenance and security improvements. Any unauthorized modification, distribution, decompilation, or reverse engineering is strictly prohibited.
Sungrow makes no express or implied warranties regarding the information provided, including but not limited to warranties of merchantability, fitness for a particular purpose, or non-infringement. Sungrow shall not be liable for any direct, indirect, incidental, or consequential damages arising from the use of this document or associated software.
Sungrow reserves the right to update or modify this document at any time without prior notice. Customers are responsible for implementing security updates in a timely manner to protect their systems.