VULNERABILITY INTELLIGENCE

CVE-2026-78581

CVSS score4.2 MEDIUM
EPSS probability0.20%
CISA KEVNot currently listed
Published2026-08-25
Last modified2026-09-02
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

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.

Weakness classification

  • security@elastic.co: CWE-639

Primary references