Is CVE-2026-19311 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-19311?

CVE-2026-19311 has a CVSS v3 severity of HIGH (8.1).

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CVE-2026-19311

Description

Missing authorization in the Execute Monitor API in Amazon OpenSearch Alerting plugin might allow an authenticated remote user to read, modify, or delete arbitrary index data via a crafted inline monitor request with unintentional data source and input index parameters.