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

Quick assessment

Affected
OpenSearch OpenSearch
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenSearch是OpenSearch开源的一个分布式搜索和分析软件。 OpenSearch 3.2.0之前版本存在安全漏洞，该漏洞源于处理复杂query_string输入不当，可能导致拒绝服务攻击。

AI Predicted 5.3 Difficulty: Easy EPSS 0.51% · P41

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2025-9624

Vulnerability Information
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Vulnerability Title
OpenSearch 3.2.0 - Nested Boolean/Disjunction asymmetric DoS
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的递归
Source: CVE Program / CVE List V5
Vulnerability Title
OpenSearch 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenSearch是OpenSearch开源的一个分布式搜索和分析软件。 OpenSearch 3.2.0之前版本存在安全漏洞，该漏洞源于处理复杂query_string输入不当，可能导致拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenSearch OpenSearch 3.0.0 ~ 3.3.0 -

II. Public POCs for CVE-2025-9624

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III. Intelligence Information for CVE-2025-9624

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Other References for CVE-2025-9624 (2)

IV. Related Vulnerabilities

Same product: OpenSearch
Same vendor: OpenSearch
Same weakness: CWE-674

V. Comments for CVE-2025-9624

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