What’s Vulnerable › Vulnerabilities
CVE-2026-72675: Missing Authorization in Kibana Machine Learning Leading to Cross-Space Information Disclosure and Unauthorized Data Modification
- Severity: high (CVSS 7.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-13 · updated 2026-09-02
- Weakness: CWE-862
Description
Missing Authorization (CWE-862) in Kibana can lead to cross-space information disclosure and unauthorized data modification via Privilege Abuse (CAPEC-122). Kibana Machine Learning carries out its Elasticsearch operations with elevated internal permissions and relies on a per-request space filter to keep the machine learning data of one space separated from another. Part of the Machine Learning functionality did not apply that filter, so operations issued from one space were carried out against the machine learning data of every space in the deployment.
Affected products
- Kibana: from 8.0.0 before 8.19.20; from 9.0.0 before 9.4.5 — fixed in 8.19.20, 9.4.5
How to fix
Upgrade to a fixed version: Kibana 8.19.20, 9.4.5. Check the vendor advisory for mitigations.
References
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