Is CVE-2026-77811 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-77811?

CVE-2026-77811 has a CVSS v3 severity of HIGH (8.7).

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CVE-2026-77811

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.