CVE-2026-64686
Received
Received - Intake
Server-Side Request Forgery in OpenSearch Dashboards
Vulnerability report for CVE-2026-64686, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-11-11
Last updated on: 2026-11-11
Assigner: GitHub, Inc.
Description
Description
OpenSearch Dashboards is an open-source data visualization tool designed to work with OpenSearch. From versions 2.14.0 to before 2.19.6, and 3.0.0 to before 3.7.0, a Server-Side Request Forgery (SSRF) vulnerability in OpenSearch Dashboards exists in the fetchDataSourceMetaData route. The sibling test_connection route validates incoming endpoint URLs via isValidURL() against configured endpointDeniedIPs and endpointAllowlistedSuffixes lists, but fetchDataSourceMetaData accepts the same input shape without performing this validation. An authenticated user can supply an internal or loopback endpoint to probe internal network resources. This issue has been patched in versions 2.19.6 and 3.7.0.
CVSS Scores
EPSS Scores
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| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| opensearch | opensearch_dashboards | From 2.14.0 (inc) to 2.19.6 (exc) |
| opensearch | opensearch_dashboards | From 3.0.0 (inc) to 3.7.0 (exc) |
| opensearch_project | opensearch_dashboards | From 2.14.0 (inc) to 2.19.6 (exc) |
| opensearch_project | opensearch_dashboards | From 3.0.0 (inc) to 3.7.0 (exc) |
| opensearch_project | opensearch_dashboards | 2.19.6 |
| opensearch_project | opensearch_dashboards | 3.7.0 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-918 | The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. |
