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CVE-2026-40584— RansomLook - Improper Filtering of Private Location Entries in API Endpoints Leads to Information Exposure

Quick assessment

Affected
RansomLook RansomLook
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.

RansomLook是RansomLook开源的一个勒索软件团伙与市场监控工具。 RansomLook 1.9.0之前版本存在信息泄露漏洞，该漏洞源于受影响应用程序中的API在website/web/api/genericapi.py中不当过滤私有位置条目，可能导致在迭代列表时删除元素，无意中在API响应中保留标记为私有的条目，从而未经授权披露非公开位置信息。

AI Predicted 6.5 Difficulty: Easy EPSS 0.44% · P38

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-40584

Vulnerability Information
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Vulnerability Title
RansomLook - Improper Filtering of Private Location Entries in API Endpoints Leads to Information Exposure
Source: CVE Program / CVE List V5
Vulnerability Description
RansomLook is a tool to monitor Ransomware groups and markets and extract their victims. Prior to 1.9.0, the API in the affected application improperly filters private location entries in website/web/api/genericapi.py. Because the code removes elements from a list while iterating over it, entries marked as private may be unintentionally retained in API responses, allowing unauthorized disclosure of non-public location information. This vulnerability is fixed in 1.9.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
RansomLook 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RansomLook是RansomLook开源的一个勒索软件团伙与市场监控工具。 RansomLook 1.9.0之前版本存在信息泄露漏洞，该漏洞源于受影响应用程序中的API在website/web/api/genericapi.py中不当过滤私有位置条目，可能导致在迭代列表时删除元素，无意中在API响应中保留标记为私有的条目，从而未经授权披露非公开位置信息。
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
RansomLook RansomLook < 1.9.0 -

II. Public POCs for CVE-2026-40584

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III. Intelligence Information for CVE-2026-40584

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IV. Related Vulnerabilities

Same product: RansomLook
Same vendor: RansomLook
Same weakness: CWE-200

V. Comments for CVE-2026-40584

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