OpenSearch Dashboards vulnerabilities
3 known CVE vulnerabilities in OpenSearch Dashboards, translated and rated.
- CVE-2026-77811High
The dashboards-observability plugin in OpenSearch Dashboards has an improper input validation vulnerability. A remote authenticated user with write permissions to saved objects can execute arbitrary JavaScript in the context of other users' browser sessions by uploading a saved asset with arbitrary web content.
- CVE-2026-18420High
The Time Series Visual Builder (TSVB) plugin in OpenSearch Dashboards has an improper input validation vulnerability that allows an authenticated remote user to execute arbitrary code on the server via a crafted JSON payload to the metrics visualization API endpoint. This is a form of prototype pollution leading to remote code execution.
- CVE-2026-75897High
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.

