Information disclosure in Ransomlook
CVE-2026-40584
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (36.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.002
Affected products
- Ransomlook — versions < 1.9.0
Weakness classification (CWE)
References
- github.com/RansomLook/RansomLook/security/advisories/GHSA-hv66-vcqc-v87c (Vendor Advisory)
- vulnerability.circl.lu/vuln/gcve-1-2026-0025 (Third Party Advisory)
Frequently asked questions
- What is CVE-2026-40584?
- CVE-2026-40584 is a high-severity vulnerability in Ransomlook, classified under Information Disclosure. CVSS score: 7.5/10. Published 2026-04-21.
- How severe is CVE-2026-40584?
- High severity. CVSS v3 base score is 7.5 out of 10.