CVE-2026-78581

4.2 Moyenne

Publiée le 25/08/2026 à 15:19 · Modifiée le 02/09/2026 à 16:10 · Analysée par le NVD · Source : security@elastic.co

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.

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Produits concernés

Elastic Kibana

Scores CVSS

Version	Score	Source	Vecteur
3.1	4.2 Moyenne	security@elastic.co	`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N`

Faiblesses (CWE)

CWE-639

Références

https://discuss.elastic.co/t/kibana-8-16-3-8-17-2-security-update-esa-2026-51/387446 Vendor Advisory

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories