What is CVE-2026-0531?

CVE-2026-0531 is a medium-severity vulnerability in Elastic Kibana, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-01-13.

How severe is CVE-2026-0531?

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

Resource exhaustion in Elastic Kibana

CVE-2026-0531

Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana Fleet can lead to Excessive Allocation (CAPEC-130) via a specially crafted bulk retrieval request. This requires an attacker to have low-level privileges equivalent t…

EPSS: 0.004 (33.3th percentile) — read the EPSS interpretation.

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.

Affected products

Elastic Kibana — versions 7.10.0, 8.0.0, 9.0.0

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

security@elastic.co (Vendor Advisory)

Frequently asked questions

What is CVE-2026-0531?: CVE-2026-0531 is a medium-severity vulnerability in Elastic Kibana, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-01-13.
How severe is CVE-2026-0531?: Medium severity. CVSS v3 base score is 6.5 out of 10.