CVE-2026-18428CWE-693

CVE-2026-18428

High · published August 13, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
62.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00999 · 62.4th percentile
Weakness
CWE-693 · Protection Mechanism Failure
Published
2026-08-13T22:17Z
References (5)
https://aws.amazon.com/security/security-bulletins/2026-081-aws/ · ff89ba41-3aa1-4d27-914a-91399e9639e5https://docs.aws.amazon.com/opensearch-service/latest/developerguide/service-software.html · ff89ba41-3aa1-4d27-914a-91399e9639e5https://github.com/opensearch-project/sql/security/advisories/GHSA-g4jr-343c-fvjm · ff89ba41-3aa1-4d27-914a-91399e9639e5https://opensearch.org/artifacts/by-version/?_gl=1*d14pqp*_up*MQ..*_ga*Nzc5NTAxNzM2LjE3ODM1NTA2NDA.*_ga_BQV14XK08F*czE3ODM1NTA2NDAkbzEkZzEkdDE3ODM1NTA3MTQkajU2JGwwJGg3NTc4ODY0OTM.#release-2-19-6 · ff89ba41-3aa1-4d27-914a-91399e9639e5https://opensearch.org/artifacts/by-version/?_gl=1*d14pqp*_up*MQ..*_ga*Nzc5NTAxNzM2LjE3ODM1NTA2NDA.*_ga_BQV14XK08F*czE3ODM1NTA2NDAkbzEkZzEkdDE3ODM1NTA3MTQkajU2JGwwJGg3NTc4ODY0OTM.#release-3-7-0 · ff89ba41-3aa1-4d27-914a-91399e9639e5
EPSS history
Timeline
  • 13 AUG 17:32Z
    SQL Query Validation Bypass in OpenSearch Direct Query
    cvelistv5