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VULNERABILITIES

CVE-2026-77811 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: AMZNCVSS-B:8.7 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

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

Weakness Enumeration

CWE-IDCWE NameSource
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')AMZN

Affected Products

No affected product data is available for this CVE.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-77811
NVD Published Date:
Aug 21, 2026
NVD Last Modified:
Aug 27, 2026
Source:
AMZN
CVE-2026-77811 Details - Not Deferred