CVE-2026-83497

HighCVSS 8.8/10Last modified Sep 3, 2026

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-502

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
OpenSearchOpenSearch>= 2.8, <= 3.6
AmazonAmazon OpenSearch Service>= 2.9, <= 3.5

References

Timeline

Published
Aug 31, 2026
Last modified
Sep 3, 2026
NVD status
Awaiting Analysis

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CVE-2026-83497: High severity, CVSS 8.8 | Vulnix