# CVE-2026-64686: OpenSearch Dashboards: SSRF in fetchDataSourceMetaData — missing endpoint validation

Status: published. Published: 2026-11-11. Updated: 2026-11-14.

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.

## Remediation

- fix: OpenSearch-Dashboards: GitHub reports patched versions 2.19.6. Check the advisory for the affected release branch. (source: GitHub GHSA-6qp6-3675-ffr3) — https://github.com/opensearch-project/OpenSearch-Dashboards/security/advisories/GHSA-6qp6-3675-ffr3
- fix: OpenSearch-Dashboards: GitHub reports patched versions 3.7.0. Check the advisory for the affected release branch. (source: GitHub GHSA-6qp6-3675-ffr3) — https://github.com/opensearch-project/OpenSearch-Dashboards/security/advisories/GHSA-6qp6-3675-ffr3

## Affected products and versions

- opensearch-project / OpenSearch-Dashboards: >= 2.14.0, < 2.19.6 (affected); >= 3.0.0, < 3.7.0 (affected). Source: CNA: GitHub_M
-  / OpenSearch-Dashboards (OpenSearch-Dashboards): >= 2.14.0, < 2.19.6 (affected, GitHub advisory range). Source: GitHub GHSA-6qp6-3675-ffr3
-  / OpenSearch-Dashboards (OpenSearch-Dashboards): >= 3.0.0, < 3.7.0 (affected, GitHub advisory range). Source: GitHub GHSA-6qp6-3675-ffr3

## Severity and prioritization

- CVSS 3.1: 5 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N; source: CNA: GitHub_M

- CVSS 3.1: 5 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N; source: NVD: security-advisories@github.com

- CISA KEV: No listing in collected sources

- EPSS: 0.26% as of 2026-11-13; percentile 17.54%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-918

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/opensearch-project/OpenSearch-Dashboards/security/advisories/GHSA-6qp6-3675-ffr3 (CNA: GitHub_M; x_refsource_CONFIRM)

- https://github.com/opensearch-project/OpenSearch-Dashboards/releases/tag/2.19.6 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/opensearch-project/OpenSearch-Dashboards/releases/tag/3.7.0 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/opensearch-project/OpenSearch-Dashboards/releases/tag/2.19.6 (security-advisories@github.com)

- https://github.com/opensearch-project/OpenSearch-Dashboards/releases/tag/3.7.0 (security-advisories@github.com)

- https://github.com/opensearch-project/OpenSearch-Dashboards/security/advisories/GHSA-6qp6-3675-ffr3 (security-advisories@github.com)

- https://github.com/opensearch-project/OpenSearch-Dashboards/security/advisories/GHSA-6qp6-3675-ffr3 (GitHub Security Advisories; advisory)

## Provenance

- CNA: GitHub_M: https://www.cve.org/CVERecord?id=CVE-2026-64686; retrieved 2026-11-14; source updated 2026-11-14

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-64686; retrieved 2026-11-13; source updated 2026-11-12

- GitHub Security Advisories: https://github.com/opensearch-project/OpenSearch-Dashboards/security/advisories/GHSA-6qp6-3675-ffr3; retrieved 2026-11-13; source updated 2026-07-22

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-64686; retrieved 2026-11-14; source updated Not reported

Revision: df14622f67891029f7e4ed7655f3ab2dfa1b285531b87a0f2aaea49c36ef0fa6

Canonical: https://y2.dev/cve/CVE-2026-64686

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