// For flags

CVE-2025-9624

OpenSearch 3.2.0 - Nested Boolean/Disjunction asymmetric DoS

Severity Score

8.3
*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

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.

*Credits: Camilo Vera
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
System
Vulnerable | Subsequent
Confidentiality
None
None
Integrity
None
None
Availability
High
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
Poc
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2025-08-28 CVE Reserved
  • 2025-11-25 CVE Published
  • 2025-11-25 CVE Updated
  • ---------- EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-674: Uncontrolled Recursion
CAPEC
  • CAPEC-227: Sustained Client Engagement
References (2)
URL Tag Source
https://fluidattacks.com/advisories/chick Third Party Advisory
URL Date SRC
URL Date SRC
https://opensearch.org/blog/explore-opensearch-3-3 2025-11-25
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
OpenSearch
Search vendor "OpenSearch"
 OpenSearch
Search vendor "OpenSearch" for product "OpenSearch"
 >= 1.0.0 < 3.2.0
Search vendor "OpenSearch" for product "OpenSearch" and version " >= 1.0.0 < 3.2.0"
en
Affected