What is CVE-2026-49087?

CVE-2026-49087 is a medium-severity vulnerability in Elastic Kibana, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-07-01.

How severe is CVE-2026-49087?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Resource exhaustion in Elastic Kibana

CVE-2026-49087

Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user can submit a specially crafted bulk deletion request that causes excessive resource consumption, which may render Kibana unavailable.

Published 2026-07-01 · last modified 2026-07-02.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (38.6th percentile), scored 2026-10-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Elastic Kibana — versions 9.0.0, 8.0.0

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

discuss.elastic.co/t/kibana-8-19-15-9-3-4-security-update-esa-2026-49 (Vendor Advisory)

Frequently asked questions

What is CVE-2026-49087?: CVE-2026-49087 is a medium-severity vulnerability in Elastic Kibana, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-07-01.
How severe is CVE-2026-49087?: Medium severity. CVSS v3 base score is 6.5 out of 10.