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VulnerabilityPublished

org.opensearch.plugin:opensearch-security · OpenSearch Security plugin: DLS not applied on documents linked by has_child or has_parent relation

Affects org.opensearch.plugin:opensearch-securitySource GCVE Database

0

CVSS 5.3 Medium : upgrade to 2.19.4.0 when convenient.

Data as of 27 Oct 2026, 00:07 UTC

CVSS 3.1 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 2.19.4.0, 3.2.0.0
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

What to do

Upgrade org.opensearch.plugin:opensearch-security to 2.19.4.0; org.opensearch.plugin:opensearch-security to 3.2.0.0.

Affected software

ProductAffectedFixed in
Mavenorg.opensearch.plugin:opensearch-securityAffected
  • >=1.0.0 <2.19.4.0
Fixed in
  • 2.19.4.0
Mavenorg.opensearch.plugin:opensearch-securityAffected
  • >=3.0.0 <3.2.0.0
Fixed in
  • 3.2.0.0

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Description

### 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.

References

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