CVE Intelligence

AWS Amazon OpenSearch Service vulnerabilities

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Published CVEs affecting AWS Amazon OpenSearch Service: 2 record(s), with affected versions and fixes.

CVE-2026-18420 High · 8.8 CWE-1321 Aug 20, 2026
RCE via Prototype Pollution in OpenSearch Dashboards
Improper input validation in the Time Series Visual Builder (TSVB) plugin in OpenSearch Dashboards allows an authenticated remote user to execute arbitrary code on the server via a crafted JSON payload to the metrics visualization API endpoint. This issue is a form of prototype pollution that enables remote code execution.  To remediate this issue, users should upgrade to OpenSearch Dashboards 3.8 or later.
CVE-2026-75897 High · 7.5 CWE-1284 Aug 18, 2026
Uncontrolled Resource Consumption in Capabilities Route in OpenSearch Dashboards
Improper input validation in the capabilities route handler in OpenSearch Dashboards - the size of the request payload is not bounded - might allow remote attackers to cause a denial of service via a crafted HTTP request.