VULNERABILITY INTELLIGENCE

CVE-2026-78587

CVSS score3.1 LOW
EPSS probability0.29%
CISA KEVNot currently listed
Published2026-09-02
Last modified2026-09-03
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

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.

Weakness classification

  • security@elastic.co: CWE-863

Primary references