CVE-2026-63145 Incorrect Authorization in Kibana Leading to Machine Learning Audit Log Integrity Compromise

What is CVE-2026-63145?

CVE-2026-63145 is a medium-severity missing authorization vulnerability in Elastic Kibana, published on 21 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Incorrect Authorization (CWE-863) in Kibana can lead to integrity compromise of Machine Learning audit and notification records via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1).

A vulnerability exists in Kibana's Machine Learning functionality where a Machine Learning management endpoint performs an insufficient authorization check. The endpoint validates only a coarse privilege level but does not verify that the requesting user has access to the specific Machine Learning job or notification resources provided in the request. As a result, a low-privileged user with Machine Learning access in any Kibana space can manipulate Machine Learning audit and notification records for arbitrary jobs—including jobs in other spaces or belonging to other users—by leveraging Kibana's internally elevated credentials to write to restricted Machine Learning system indices that the user cannot access directly.

Weakness: CWE-863

Which versions are affected by CVE-2026-63145?

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-2026-63145?

Upgrade kibana to a fixed version for your release line: 8.19.19, 9.3.8 or 9.4.4.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-63145 being exploited?

There is no known exploitation of CVE-2026-63145 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-2026-63145, BIT-kibana-2026-63145, GHSA-q5gv-xxq5-3m7c, MINI-3xv7-5fw5-c7x5, MINI-588q-5hx3-85fm, MINI-7mw9-9hwp-qr97 and 4 more.