CVE-2026-78581
MEDIUM
NVD
CVSS Score
4.2
Severity
MEDIUM
Published
Aug 25, 2026
Vendor
unknown
Description
Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to unauthorized data modification via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). Under certain conditions, an authenticated user could reference another user's AI Assistant conversation identifier to access or modify a conversation they do not own. Successful exploitation requires knowledge of a hard-to-guess identifier.