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VULNERABILITIES

CVE-2026-18428 Details

Description

A SQL query validation bypass in the Flint extension query handler in the OpenSearch SQL plugin allows a remote authenticated actor with async query access to execute arbitrary code on Apache Spark workers by sending a crafted SQL query to the direct query endpoint.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: AMZNCVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://aws.amazon.com/security/security-bulletins/2026-081-aws/ AMZN
https://docs.aws.amazon.com/opensearch-service/latest/developerguide/service-software.html AMZN
https://github.com/opensearch-project/sql/security/advisories/GHSA-g4jr-343c-fvjm AMZN
https://opensearch.org/artifacts/by-version/?_gl=1*d14pqp*_up*MQ..*_ga*Nzc5NTAxNzM2LjE3ODM1NTA2NDA.*_ga_BQV14XK08F*czE3ODM1NTA2NDAkbzEkZzEkdDE3ODM1NTA3MTQkajU2JGwwJGg3NTc4ODY0OTM.#release-2-19-6 AMZN
https://opensearch.org/artifacts/by-version/?_gl=1*d14pqp*_up*MQ..*_ga*Nzc5NTAxNzM2LjE3ODM1NTA2NDA.*_ga_BQV14XK08F*czE3ODM1NTA2NDAkbzEkZzEkdDE3ODM1NTA3MTQkajU2JGwwJGg3NTc4ODY0OTM.#release-3-7-0 AMZN

Weakness Enumeration

CWE-IDCWE NameSource
CWE-693Protection Mechanism FailureAMZN

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-18428
NVD Published Date:
Aug 13, 2026
NVD Last Modified:
Aug 14, 2026
Source:
AMZN
CVE-2026-18428 Details - Not Deferred