CVE-2026-75897

Uncontrolled Resource Consumption in Capabilities Route in OpenSearch Dashboards

State: Published
Severity: 8.7 High
Published: Aug 18, 2026
Updated: Aug 18, 2026
Reserved: Aug 18, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	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	AMZN
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	AMZN

Weaknesses

CWE-1284 Improper Validation of Specified Quantity in Input

Affected Products

Product	Versions
OpenSearch DashboardsOpenSearch	1.3 through 3.7.0Affected
Amazon OpenSearch ServiceAWS	1.3 through 3.5Affected

References

https://aws.amazon.com/security/security-bulletins/2026-082-aws/vendor-advisory
https://opensearch.org/downloads/patch

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