Description
Unrestricted deserialization of untrusted data in the cursor pagination component in the OpenSearch SQL plugin allows a remote authenticated user with basic read/search permissions to execute arbitrary code on the server by sending a crafted cursor parameter to the plugins/sql endpoint.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenSearch | OpenSearch | 2.8 – ≤ 3.6 | — |
| Amazon | Amazon OpenSearch Service | 2.9 – ≤ 3.5 | — |
References
- https://opensearch.org/artifacts/by-version/#release-3-7-0 patch release-notes
- https://opensearch.org/artifacts/by-version/#release-2-19-6 patch release-notes
- https://aws.amazon.com/security/security-bulletins/2026-092-aws/ vendor-advisory