Vulnerabilities CVE-2026-77811

CVE-2026-77811

High

Open

TLP:CLEAR

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

NVD CVE.org

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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.

Details

CVSS Score: 8.7
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Confidence: 90%
Published: Aug 21, 2026
Last Modified: Aug 21, 2026

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