OpenSearch Dashboards XSS via dashboardsobservability plugin
CVE-2026-77811 Published on August 21, 2026

Stored Cross-Site Scripting via Integration Template Asset in OpenSearch Dashboards
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.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-77811 can be exploited with network access, requires user interaction and a small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
REQUIRED
Scope:
CHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
NONE

Weakness Type

What is a XSS Vulnerability?

The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

CVE-2026-77811 has been classified to as a XSS vulnerability or weakness.


Products Associated with CVE-2026-77811

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Opensearch Dashboards Dashboards Observability Plugin
 

Affected Versions

AWS Amazon OpenSearch Service: OpenSearch Dashboards dashboards-observability plugin: