Platform
other
Component
hydrosystem-control-system
Fixed in
9.8.5
CVE-2026-4901 describes a sensitive data leak vulnerability within the Hydrosystem Control System. The system inadvertently logs user credentials into a log file, potentially allowing an attacker to gain unauthorized access. This vulnerability affects versions from 0.0.0 through 9.8.5, and a fix is available in version 9.8.5.
The primary impact of CVE-2026-4901 is the exposure of sensitive user credentials. An attacker who gains access to these logs can leverage the stolen credentials to authenticate to the Hydrosystem Control System, effectively gaining authorized access. This could lead to unauthorized control of the system, data breaches, and potential disruption of operations. The vulnerability's impact is compounded by its potential synergy with CVE-2026-34184, suggesting a broader attack surface if both vulnerabilities are present. The potential for lateral movement within the control system is significant, as compromised credentials could be used to access other connected systems or components.
CVE-2026-4901 was publicly disclosed on 2026-04-09. The vulnerability's severity is pending evaluation. There are currently no publicly available proof-of-concept exploits. Given the sensitivity of the data exposed (user credentials) and the potential for combined exploitation with CVE-2026-34184, this vulnerability warrants careful attention and prompt remediation.
Exploit Status
EPSS
0.05% (16% percentile)
CISA SSVC
The primary mitigation for CVE-2026-4901 is to upgrade the Hydrosystem Control System to version 9.8.5 or later, which includes the fix for this vulnerability. If an immediate upgrade is not feasible, consider implementing stricter access controls and monitoring log files for suspicious activity. Implement a robust logging policy that prevents the storage of sensitive information like credentials. Review and audit existing logging practices to ensure compliance with security best practices. After upgrade, confirm by reviewing system logs to ensure no sensitive data is being logged.
Update the Hydrosystem Control System to version 9.8.5 or later to prevent the exposure of user credentials in log files. Review existing log files to identify and mitigate any compromised credentials.
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CVE-2026-4901 is a vulnerability in Hydrosystem Control System where user credentials are logged, potentially allowing unauthorized access. Severity is pending evaluation.
If you are using Hydrosystem Control System versions 0.0.0 through 9.8.5, you are potentially affected by this vulnerability.
Upgrade to version 9.8.5 or later to resolve the sensitive data leak vulnerability. Review logging practices to prevent future credential exposure.
As of the current disclosure date, there are no confirmed reports of active exploitation, but the potential for exploitation exists.
Please refer to the Hydrosystem Control System vendor's official security advisory for detailed information and updates regarding CVE-2026-4901.
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