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As of 10/23/2026, Amazon OpenSearch Service recorded 1 security vulnerability in the last 90 days, of which 1 is rated High or Critical. None of these vulnerabilities is actively exploited (KEV) according to CISA's catalog. CyStack recommends that organizations and individual users apply patches as soon as possible.
CyStack does not yet have sufficient official-source data to identify the latest version of Amazon OpenSearch Service and determine which vulnerabilities affect that version.
CyStack VulnScan continuously discovers assets, validates vulnerabilities, and helps security teams prioritize remediation across the organization.
CVE-2026-83497Unrestricted Java Deserialization in OpenSearch SQL Plugin Cursor Pagination| Vulnerability | Exploitation status | Fix | Published | Severity |
|---|---|---|---|---|
CVE-2026-83497Unrestricted Java Deserialization in OpenSearch SQL Plugin Cursor Pagination | Exploitation statusNot exploited | FixYes | Published08/31/2026 | SeverityHigh |
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