CVE-2026-77811

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 v3 8.7 HIGH

8.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.3 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://aws.amazon.com/security/security-bulletins/2026-088-aws/
https://github.com/opensearch-project/dashboards-observability/security/advisories/GHSA-rmqx-r3wm-3px5
https://opensearch.org/artifacts/by-version/#release-2-19-6
https://opensearch.org/artifacts/by-version/#release-3-4-0

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-21 21:17

Updated : 2026-08-27 20:18

NVD link : CVE-2026-77811

Mitre link : CVE-2026-77811

CVE.ORG link : CVE-2026-77811

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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