CVE-2026-19311
High
Description
Missing authorization in the Execute Monitor API in Amazon OpenSearch Alerting plugin might allow an authenticated remote user to read, modify, or delete arbitrary index data via a crafted inline monitor request with unintentional data source and input index parameters.
SeverityHigh
CVSS8.1
Exploit probability—
ProductOpenSearch
PublishedAug 12, 2026
First seenAug 12, 2026
Weakness typeCWE-475CWE-475
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| AWS OpenSearch | 2.4 ≤ v ≤ 3.5 | — |
| Github OpenSearch | 2.4.0 ≤ v ≤ 2.19.5, 3.0.0 ≤ v ≤ 3.7.0 | — |
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