CVE-2026-4498 Privilege escalation in Kibana

What is CVE-2026-4498?

CVE-2026-4498 is a high-severity vulnerability in Elastic Kibana, published on 8 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Execution with Unnecessary Privileges (CWE-250) in Kibana’s Fleet plugin debug route handlers can lead reading index data beyond their direct Elasticsearch RBAC scope via Privilege Abuse (CAPEC-122). This requires an authenticated Kibana user with Fleet sub-feature privileges (such as agents, agent policies, and settings management).

Weakness: CWE-250

Which versions are affected by CVE-2026-4498?

2 open source packages ship an affected version, including kibana and elk. It affects 1 product.

Products include Elastic Kibana.

How do I fix CVE-2026-4498?

Upgrade kibana to a fixed version for your release line: 8.19.14, 9.2.8 or 9.3.3.

Is CVE-2026-4498 being exploited?

There is no known exploitation of CVE-2026-4498 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 BIT-elk-2026-4498, BIT-kibana-2026-4498, GHSA-4c73-92cw-x6vq, MINI-8prm-rg8h-qqxp, MINI-9v5c-qc6q-rcv8, MINI-hxw3-jp77-7h3q and 3 more.