Vulnerability details

CVE-2026-75897

AWS Amazon OpenSearch ServiceOpenSearch Dashboards

Uncontrolled Resource Consumption in Capabilities Route in OpenSearch Dashboards

CVSS 4.0

8.7High

Official 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.

CVSS scores

Score	Version	Source	Vector
8.7High	4.0	CVEProject cvelistV5 (CNA) (AMZN)	`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`
7.5High	3.1	CVEProject cvelistV5 (CNA) (AMZN)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`

Affected products

Vendor	Product	Versions	Source
AWS	Amazon OpenSearch Service	1.3 ≤ v ≤ 3.5	CVEProject cvelistV5 (CNA)
OpenSearch	OpenSearch Dashboards	1.3 ≤ v ≤ 3.7.0	CVEProject cvelistV5 (CNA)

References and advisories

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

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Details

Published: 2026-08-18
Last updated: 2026-08-18
State: Published
Assigner (CNA): AMZN

Exploit prediction (EPSS)

0.71%

Probability of exploitation in 30 days

53.9%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: Yes
Exploitation: None
Technical impact: Partial

Weaknesses (CWE)

CWE-1284
Improper Validation of Specified Quantity in Input