What is CVE-2026-56152?

CVE-2026-56152 is a medium-severity vulnerability in Elastic Defend, classified under Incorrect Authorization. CVSS score: 5.3/10. Published 2026-07-01.

How severe is CVE-2026-56152?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Elastic Defend

CVE-2026-56152

Incorrect Authorization (CWE-863) in Elastic Defend can lead to unauthorized information disclosure via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). Under certain conditions, a low-privileged authenticated user can access response action data that they are not authorized to view.

Vulnerability class: Broken Access Control

EPSS: 0.002 (10.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Elastic Defend — versions 9.3.0, 8.6.0, 9.0.0
Elastic Endpoint_security

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

security@elastic.co (Vendor Advisory)

Frequently asked questions

What is CVE-2026-56152?: CVE-2026-56152 is a medium-severity vulnerability in Elastic Defend, classified under Incorrect Authorization. CVSS score: 5.3/10. Published 2026-07-01.
How severe is CVE-2026-56152?: Medium severity. CVSS v3 base score is 5.3 out of 10.