What’s Vulnerable › Vulnerabilities
CVE-2026-78590: Improper Limitation of a Pathname to a Restricted Directory in Kibana Leading to Unauthorized Deletion of Privileged Resources
- Severity: high (CVSS 7.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-02 · updated 2026-09-03
- Weakness: CWE-22
Description
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) in the Kibana Fleet feature can lead to the unauthorized deletion of privileged resources via Path Traversal (CAPEC-126). A low-privileged user holding Fleet Settings write access could cause a subsequent administrative action to act on unintended internal resources, resulting in the deletion of privileged resources such as user accounts and other organizational assets. Exploitation requires an administrator to interact with the affected Fleet interface.
Affected products
- Kibana: from 8.0.0 before 8.19.18; from 9.0.0 before 9.3.6; from 9.4.0 before 9.4.3 — fixed in 8.19.18, 9.3.6, 9.4.3
How to fix
Upgrade to a fixed version: Kibana 8.19.18, 9.3.6, 9.4.3. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2026-78590 or the next vulnerability affects your stack