CVE-2026-4901

Hydrosystem Control System saves sensitive information into a log file. Critically, user credentials are logged allowing the attacker to obtain further authorized access into the system. Combined with vulnerability CVE-2026-34184, these sensitive information could be accessed by an unauthorized user.This issue was fixed in Hydrosystem Control System version 9.8.5

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://cert.pl/posts/2026/04/CVE-2026-4901/	Vendor Advisory
https://www.hydrosystem.poznan.pl/	Product

Configurations

Configuration 1 (hide)

cpe:2.3:a:hydrosystem.poznan:control_system:*:*:*:*:*:*:*:*

History

20 Apr 2026, 17:05

Type	Values Removed	Values Added
First Time		Hydrosystem.poznan Hydrosystem.poznan control System
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.5
References	~~() https://cert.pl/posts/2026/04/CVE-2026-4901/ -~~	() https://cert.pl/posts/2026/04/CVE-2026-4901/ - Vendor Advisory
References	~~() https://www.hydrosystem.poznan.pl/ -~~	() https://www.hydrosystem.poznan.pl/ - Product
CPE		cpe:2.3:a:hydrosystem.poznan:control_system::::::::

09 Apr 2026, 10:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-09 10:16

Updated : 2026-04-20 17:05

NVD link : CVE-2026-4901

Mitre link : CVE-2026-4901

CVE.ORG link : CVE-2026-4901

JSON object : View

Products Affected

hydrosystem.poznan

control_system

CWE

CWE-532

Insertion of Sensitive Information into Log File

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