Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://aws.amazon.com/security/security-bulletins/2026-088-aws/
- https://github.com/opensearch-project/dashboards-observability/security/advisori
- https://opensearch.org/artifacts/by-version/#release-2-19-6
- https://opensearch.org/artifacts/by-version/#release-3-4-0
FAQ
What is CVE-2026-77811?
CVE-2026-77811 is a vulnerability with a CVSS score of 8.7 (HIGH). 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 ar...
How severe is CVE-2026-77811?
CVE-2026-77811 has been rated HIGH with a CVSS base score of 8.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-77811?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.