CVE-2026-78587

LowCVSS 3.1/10Last modified Sep 3, 2026

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.

Metrics

CVSS 3.1 3.1/10CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Sep 2, 2026
Last modified
Sep 3, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-785886.5Allocation of Resources Without Limits or Throttling (CWE-770) in Filebeat can lead to a denial of service via Excessive Allocation (CAPEC-1CVE-2026-78595.3The Motors WordPress plugin before 1.4.110 does not have proper authorisation and CSRF checks on one of its AJAX actions, allowing unauthenCVE-2026-785907.3Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) in the Kibana Fleet feature can lead to the unauthorCVE-2026-785916.3Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) in the Kibana Fleet feature can lead to the unauthorCVE-2026-785927.3Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) in Kibana can lead to the unauthorized deletion of pCVE-2026-785934.3An insufficiently validated configuration field in Kibana's Cribl integration allows an authenticated user holding Kibana Fleet management pCVE-2026-785944.9Improper Handling of Highly Compressed Data (CWE-409) in APM Server can lead to a persistent denial of service via Excessive Allocation (CAPCVE-2026-785954.3Missing Authorization in Kibana Leading to Information Disclosure / Missing Authorization (CWE-862) in the Kibana Fleet feature can lead to CVE-2026-785964.3Missing Authorization in Kibana Leading to Unauthorized Modification of Data / Missing Authorization (CWE-862) in Kibana can lead to unauthoCVE-2026-785974.3Missing Authorization (CWE-862) in the Kibana Entity Store feature can lead to unauthorized credential creation via Accessing Functionality CVE-2026-785985.4Incorrect Authorization (CWE-863) in the Kibana machine learning feature can lead to information disclosure via Exploiting Incorrectly ConfiCVE-2026-785996.5Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) in the Kibana Fleet feature can lead to the unauthor
CVE-2026-78587: Low severity, CVSS 3.1 | Vulnix