What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-21 · updated 2026-06-17
• Weakness: CWE-200

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.

Affected products

• ransomlook: before 1.9.0 — fixed in 1.9.0

How to fix

Upgrade to a fixed version: ransomlook 1.9.0. Check the vendor advisory for mitigations.

References

• https://github.com/RansomLook/RansomLook/security/advisories/GHSA-hv66-vcqc-v87c
• https://vulnerability.circl.lu/vuln/gcve-1-2026-0025

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