CVE-2025-9624OpenSearch 3.2.0 - Nested Boolean/Disjunction asymmetric DoS

Description

A vulnerability in OpenSearch allows attackers to cause Denial of Service (DoS) by submitting complex query_string inputs. This issue affects all OpenSearch versions between 3.0.0 and < 3.3.0 and OpenSearch < 2.19.4.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://fluidattacks.com/advisories/chick third-party-advisoryExploitThird Party Advisory
• https://github.com/opensearch-project/OpenSearch/releases/tag/3.3.0 patchrelease-notes
• https://github.com/opensearch-project/OpenSearch/releases/tag/2.19.4 patchrelease-notes