CVE-2026-78587

3.1 Faible

Publiée le 02/09/2026 à 17:17 · Modifiée le 03/09/2026 à 21:11 · Analysée par le NVD · Source : security@elastic.co

Description

Incorrect Authorization (CWE-863) in Fleet Server can lead to a denial of service of agent upload operations via Privilege Abuse (CAPEC-122). Fleet Server does not correctly verify session ownership during multi-part data upload operations, allowing any authenticated agent to interfere with the active upload sessions belonging to other enrolled agents.

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Produits concernés

Elastic Fleet Server

Scores CVSS

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

Faiblesses (CWE)

CWE-863

Références

https://discuss.elastic.co/t/fleet-server-8-19-16-9-3-5-9-4-2-security-update-esa-2026-164/390117 Vendor Advisory

Ailleurs

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