3.1

CVE-2026-78587

Incorrect Authorization in Fleet Server Leading to Denial of Service of Agent Upload Operations

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Elastic ≫ Fleet Server Version >= 8.0.0 < 8.19.16
Elastic ≫ Fleet Server Version >= 9.0.0 < 9.3.5
Elastic ≫ Fleet Server Version >= 9.4.0 < 9.4.2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.2% 0.102
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security@elastic.co 3.1 1.6 1.4
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
CWE-863 Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

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