Improper input validation in the capabilities route handler in OpenSearch Dashboards - the size of the request payload is not bounded - might allow remote attackers to cause a denial of service via a crafted HTTP request.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
OpenSearch OpenSearch Dashboards unaffected
Version Status Constraints
1.3 affected ≤ 3.7.0
AWS Amazon OpenSearch Service unaffected
Version Status Constraints
1.3 affected ≤ 3.5

No data.

No data.

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No data.

Project Subscriptions

Vendors Products
Aws Subscribe
Amazon Opensearch Service Subscribe
Opensearch Subscribe
Opensearch Dashboards Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://aws.amazon.com/security/security-bulletins/2026-082-aws/ cve-icon cve-icon
https://opensearch.org/downloads/ cve-icon cve-icon
History

Tue, 18 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 18 Aug 2026 17:15:00 +0000

Type Values Removed Values Added
Description Improper input validation in the capabilities route handler in OpenSearch Dashboards - the size of the request payload is not bounded - might allow remote attackers to cause a denial of service via a crafted HTTP request.
Title Uncontrolled Resource Consumption in Capabilities Route in OpenSearch Dashboards
First Time appeared Aws
Aws amazon Opensearch Service
Opensearch
Opensearch opensearch Dashboards
Weaknesses CWE-1284
CPEs cpe:2.3:a:aws:amazon_opensearch_service:*:*:*:*:*:*:*:*
cpe:2.3:a:opensearch:opensearch_dashboards:*:*:*:*:*:*:*:*
Vendors & Products Aws
Aws amazon Opensearch Service
Opensearch
Opensearch opensearch Dashboards
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: AMZN

Published:

Updated: 2026-08-18T19:21:13.427Z

Reserved: 2026-08-18T14:11:50.983Z

Link: CVE-2026-75897

cve-icon Vulnrichment

Updated: 2026-08-18T19:10:38.446Z

cve-icon NVD

Status : Received

Published: 2026-08-18T17:17:03.310

Modified: 2026-08-18T20:17:33.580

Link: CVE-2026-75897

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-18T19:00:12Z

Weaknesses