CVE-2026-78604

HighCVSS 7.8/10Last modified Sep 4, 2026

Description

Incorrect Permission Assignment for Critical Resource (CWE-732) in Elastic Agent can lead to local privilege escalation via Replace Binaries (CAPEC-642). On Windows systems where Elastic Agent is installed in unprivileged mode, resources used by the agent service are created with access controls broader than required. A local user could take advantage of this to cause the service to execute code of their choosing, ultimately obtaining SYSTEM-level privileges on the host.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-732

Affected software

Vendor	Product	Versions
Elastic	Elastic Agent	>= 8.0.0, <= 8.19.20; >= 9.0.0, <= 9.4.5; >= 9.5.0, <= 9.5.1

References

https://discuss.elastic.co/t/elastic-agent-8-19-21-9-4-6-9-5-2-security-update-esa-2026-150/390109Vendor Advisory

Timeline

Published: Sep 2, 2026
Last modified: Sep 4, 2026
NVD status: Analyzed

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