Is CVE-2026-115298 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-115298?

CVE-2026-115298 has a CVSS v3 severity of MEDIUM (4.3).

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CVE-2026-115298

Description

Incorrect Authorization (CWE-863) in Elasticsearch can lead to information disclosure via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). An authenticated user whose index access is restricted by field-level security can retrieve the value of a constant_keyword field that their role excludes. Some search and query features do not apply the field-level security restriction to this field type.