CVE-2026-77811
HIGH
NVD
CVSS Score
8.7
Severity
HIGH
Published
Aug 21, 2026
Vendor
unknown
Description
Improper input validation in the dashboards-observability plugin in OpenSearch Dashboards allows a remote authenticated user with write permissions to OpenSearch Dashboards saved objects to execute arbitrary JavaScript in the context of other users' browser sessions by uploading a saved asset with arbitrary web content.