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CVE-2026-4901— Insertion of Sesitive Information into Log File in AlanWeb SCADA

Quick assessment

Affected
Control System AlanWeb SCADA
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Hydrosystem Control System是美国Hydrosystem公司的一个工业水处理与流体控制监测系统。 Hydrosystem Control System 9.8.5之前版本存在日志信息泄露漏洞，该漏洞源于将敏感信息保存到日志文件，可能导致攻击者获取凭据并获得进一步授权访问。

CVSS 6.9 · Medium EPSS 0.40% · P33

Affected Version Matrix 1

VendorProduct Version RangeStatus
Control System AlanWeb SCADA < 9.8.5 affected
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I. Basic Information for CVE-2026-4901

Vulnerability Information
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Vulnerability Title
Insertion of Sesitive Information into Log File in AlanWeb SCADA
Source: CVE Program / CVE List V5
Vulnerability Description
AlanWeb SCADA 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 AlanWeb SCADA version 9.8.5
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Hydrosystem Control System 日志信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hydrosystem Control System是美国Hydrosystem公司的一个工业水处理与流体控制监测系统。 Hydrosystem Control System 9.8.5之前版本存在日志信息泄露漏洞，该漏洞源于将敏感信息保存到日志文件，可能导致攻击者获取凭据并获得进一步授权访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Control System AlanWeb SCADA 0 ~ 9.8.5 -

II. Public POCs for CVE-2026-4901

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III. Intelligence Information for CVE-2026-4901

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Vendor Pages for CVE-2026-4901 (1)

Same Patch Batch · Control System · 2026-04-09 · 3 CVEs total

CVE-2026-34184 8.8 HIGH Missing Authorization inAlanWeb SCADA
CVE-2026-34185 8.7 HIGH SQL Injection in AlanWeb SCADA

IV. Related Vulnerabilities

Same product: AlanWeb SCADA
Same vendor: Control System
Same weakness: CWE-532

V. Comments for CVE-2026-4901

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