Prototype Pollution in Elastic Kibana
CVE-2025-25014
A Prototype pollution vulnerability in Kibana leads to arbitrary code execution via crafted HTTP requests to machine learning and reporting endpoints.
Vulnerability class: Prototype Pollution
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.215 (97.5th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.215 · newest: 0.215 · change: 0.000
Affected products
- Elastic Kibana — versions 8.3.0, 8.18.0, 9.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- discuss.elastic.co/t/kibana-8-17-6-8-18-1-or-9-0-1-security-update-esa-2025-07/… (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-25014?
- CVE-2025-25014 is a critical-severity vulnerability in Elastic Kibana, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 9.1/10. Published 2025-05-06.
- How severe is CVE-2025-25014?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2025-25014 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.