OpenSearch Security plugin: DLS not applied on documents linked by has_child or has_parent relation
Description
A flaw was identified in the OpenSearch Security plugin's document-level security (DLS) implementation. DLS restrictions were not correctly applied to search queries that use has_parent or has_child join relations. This could allow an authenticated user to access document contents that should have been restricted by DLS rules.
Impact
An authenticated user with access to an index containing parent/child join relations could bypass DLS restrictions on documents linked by those relations, potentially accessing restricted document contents. This only affects clusters that use both DLS and the join field type on the same index.
Patches
This issue is fixed in OpenSearch 2.19.4 and 3.2.0.
Workarounds
Avoid using the join field type on indices that are subject to DLS rules.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.opensearch.plugin:opensearch-security | >= 1.0.0, < 2.19.4.0, >= 3.0.0, < 3.2.0.0 | 2.19.4.0, 3.2.0.0 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-863- Platform
- Java / Kotlin (Maven)
- Package
org.opensearch.plugin:opensearch-security- Disclosed
- 07.05.2026
- Updated
- 11.10.2026 12:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-x83w-23jp-g6pw - CC BY 4.0
Vulnerability history: org.opensearch.plugin:opensearch-security
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 14
- First → latest
- 08.2022 05.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
- Medium 9
- Low 3
Disclosures per year
- 2022: 1
- 2023: 7
- 2024: 0
- 2025: 2
- 2026: 4
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OpenSearch Security plugin: DLS not applied on documents linked by has_child or has_parent relation this entry
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