---
id: CVE-2026-77811
title: >-
  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 …
summary: >-
  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 …
severity: high
cvss: 8.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N'
cwe:
  - CWE-79
published: '2026-08-21'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T19:10:00.297'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-77811'
references:
  - url: 'https://aws.amazon.com/security/security-bulletins/2026-088-aws/'
    label: ff89ba41-3aa1-4d27-914a-91399e9639e5
  - url: >-
      https://github.com/opensearch-project/dashboards-observability/security/advisories/GHSA-rmqx-r3wm-3px5
    label: ff89ba41-3aa1-4d27-914a-91399e9639e5
  - url: 'https://opensearch.org/artifacts/by-version/#release-2-19-6'
    label: ff89ba41-3aa1-4d27-914a-91399e9639e5
  - url: 'https://opensearch.org/artifacts/by-version/#release-3-4-0'
    label: ff89ba41-3aa1-4d27-914a-91399e9639e5
tags:
  - nvd
epss: 0.00518
epssPercentile: 0.4265
ingestedAt: '2026-10-14T19:49:57.571Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.