CVE-2026-107194: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-8f9m-p66m-hj4m
Share
CWE-288
Published
Advisory Summary

CVE-2026-107194 is a CRITICAL security vulnerability vulnerability (CWE-288: Authentication Bypass Using an Alternate Path or Channel) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product requires authentication, but the product has an alternate path or channel that does not require authentication.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-107194 at a Glance

CVE Identifier CVE-2026-107194
GHSA Identifier GHSA-8f9m-p66m-hj4m
Severity CRITICAL
CVSS v3.1 Base Score N/A
CWE Classification CWE-288: Authentication Bypass Using an Alternate Path or Channel
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-107194

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-107194, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-288: Authentication Bypass Using an Alternate Path or Channel, where the product requires authentication, but the product has an alternate path or channel that does not require authentication. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

References

NVD — CVE-2026-107194 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-107194
jakkaru.de/articles/sungrow-vu... WEB
https://jakkaru.de/articles/sungrow-vulnerability-exposes-gigawatts-worldwide
Software Security Information SECURITY
https://www.linkedin.com/posts/patrick-lamplmair-0aa66715b_otsecurity-gridsecurity-solarenergy-activity-7514199420771393536-HAi3
Software Security Information SECURITY
https://www.pv-magazine.com/2026/10/08/sungrow-patches-isolarcloud-vulnerability-after-security-researchers-gain-access
www.pv-tech.org/sungrow-patches-clo... WEB
https://www.pv-tech.org/sungrow-patches-cloud-vulnerability-affecting-solar-inverters
www.sungrowpower.com/en/login-bypass-vul... WEB
https://www.sungrowpower.com/en/login-bypass-vulnerability-in-sungrow-isolarcloud
www.sungrowpower.com/en/products/cloud-s... WEB
https://www.sungrowpower.com/en/products/cloud-software/isolarcloud

Frequently Asked Questions

What is CVE-2026-107194?
CVE-2026-107194 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-288: Authentication Bypass Using an Alternate Path or Channel.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-107194?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-107194?
CVE-2026-107194 is classified under CWE-288: Authentication Bypass Using an Alternate Path or Channel (The product requires authentication, but the product has an alternate path or channel that does not require authentication.).
How can I check Maven dependencies for CVE-2026-107194?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-8f9m-p66m-hj4m",
  "modified" : "2026-10-19T15:32:27Z",
  "published" : "2026-10-07T15:31:59Z",
  "aliases" : [ "CVE-2026-107194" ],
  "details" : "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.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-107194"
  }, {
    "type" : "WEB",
    "url" : "https://jakkaru.de/articles/sungrow-vulnerability-exposes-gigawatts-worldwide"
  }, {
    "type" : "WEB",
    "url" : "https://www.linkedin.com/posts/patrick-lamplmair-0aa66715b_otsecurity-gridsecurity-solarenergy-activity-7514199420771393536-HAi3"
  }, {
    "type" : "WEB",
    "url" : "https://www.pv-magazine.com/2026/10/08/sungrow-patches-isolarcloud-vulnerability-after-security-researchers-gain-access"
  }, {
    "type" : "WEB",
    "url" : "https://www.pv-tech.org/sungrow-patches-cloud-vulnerability-affecting-solar-inverters"
  }, {
    "type" : "WEB",
    "url" : "https://www.sungrowpower.com/en/login-bypass-vulnerability-in-sungrow-isolarcloud"
  }, {
    "type" : "WEB",
    "url" : "https://www.sungrowpower.com/en/products/cloud-software/isolarcloud"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-288" ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-07T14:17:09Z"
  }
}