CVE-2026-49087 Allocation of Resources Without Limits or Throttling in Kibana Leading to Denial of Service

What is CVE-2026-49087?

CVE-2026-49087 is a medium-severity denial of service vulnerability in Elastic Kibana, published on 1 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

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.

Weakness: CWE-770

Which versions are affected by CVE-2026-49087?

It affects 1 product.

Products include Elastic Kibana.

How do I fix CVE-2026-49087?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-49087 being exploited?

There is no known exploitation of CVE-2026-49087 in the wild and no public exploit code.

Other vulnerabilities in Elastic Kibana

• CVE-2019-7609 Kibana Arbitrary Code Execution Exploited Critical 9.8
• CVE-2025-25015 Kibana arbitrary code execution via prototype pollution Critical 9.9
• CVE-2024-37288 Deserialization in Kibana Critical 9.9
• CVE-2023-31415 Code injection in Kibana Critical 9.9
• CVE-2018-17245 Information disclosure in Kibana Critical 9.8

All Elastic Kibana vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-fv98-p2r6-2cjr, MINI-2q3h-2r9q-gjcg, MINI-8pm4-3m87-96f7, MINI-9wp5-936q-9jmm, MINI-q4wx-vrrm-vgr2, MINI-wf3m-8x67-3pjc and 1 more.