What is CVE-2025-37734?

CVE-2025-37734 is a medium-severity vulnerability in Elastic Kibana, classified under Origin Validation Error. CVSS score: 4.3/10. Published 2025-11-12.

How severe is CVE-2025-37734?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Elastic Kibana

CVE-2025-37734

Origin Validation Error in Kibana can lead to Server-Side Request Forgery via a forged Origin HTTP header processed by the Observability AI Assistant.

Published 2025-11-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (10.4th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 10.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Elastic Kibana — versions 8.12.0, 9.1.0, 9.2.0

Weakness classification (CWE)

CWE-346 — Origin Validation Error

References

discuss.elastic.co/t/kibana-8-19-7-9-1-7-and-9-2-1-security-update-esa-2025-24/… (Vendor Advisory)

Frequently asked questions

What is CVE-2025-37734?: CVE-2025-37734 is a medium-severity vulnerability in Elastic Kibana, classified under Origin Validation Error. CVSS score: 4.3/10. Published 2025-11-12.
How severe is CVE-2025-37734?: Medium severity. CVSS v3 base score is 4.3 out of 10.