PT-2026-84396 · Elastic · Kibana

CVE-2026-78606

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Published

2026-09-01

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Updated

2026-09-01

CVSS v3.1

4.2

Medium

VectorAV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Name of the Vulnerable Software and Affected Versions Kibana (affected versions not specified)
Description An incorrect authorization issue exists where functionality is not properly constrained by Access Control Lists (ACLs). This occurs when two authenticated users from different authentication realms share the same username, allowing one user to read, modify, and delete the private Elastic AI Assistant Knowledge Base entries of the other.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Incorrect Authorization

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Weakness Enumeration

Related Identifiers

CVE-2026-78606

Affected Products

Kibana