CVE-2025-9624

OpenSearch 3.2.0 - Nested Boolean/Disjunction asymmetric DoS

Published Nov 25, 2025 CVSS 4.0 · 8.3 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-mw3v-mmfw-3x2g OpenSearch is vulnerable to DoS via complex query_string inputs
History
Type Values Removed Values Added
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 below 3.2.0. 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.
References
Type Values Removed Values Added
First Time appeared Amazon
Amazon opensearch
CPEs cpe:2.3:a:amazon:opensearch:*:*:*:*:*:*:*:*
Vendors & Products Amazon
Amazon opensearch
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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 below 3.2.0.
Title OpenSearch 3.2.0 - Nested Boolean/Disjunction asymmetric DoS
First Time appeared Opensearch
Opensearch opensearch
Weaknesses CWE-674
CPEs cpe:2.3:a:opensearch:opensearch:*:*:linux:*:*:*:*:*
cpe:2.3:a:opensearch:opensearch:*:*:macos:*:*:*:*:*
cpe:2.3:a:opensearch:opensearch:*:*:windows:*:*:*:*:*
Vendors & Products Opensearch
Opensearch opensearch
References
Metrics cvssV4_0

{'score': 8.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Fluid Attacks
Published
Updated
Dec 15, 2025, 2:04 PM
Reserved
Aug 28, 2025, 7:08 PM
Status
Modified
Published
Nov 25, 2025, 8:16 PM
Modified
Oct 18, 2026, 8:10 PM