# CVE-2025-9624

## Summary

- **CVE ID:** CVE-2025-9624
- **Severity:** HIGH
- **CVSS Score:** 8.3 (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)
- **CWE:** CWE-674
- **Published:** Nov 25, 2025
- **Last Modified:** Mar 12, 2026

## 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.

## Affected Products

- OpenSearch — OpenSearch (3.0.0)
- OpenSearch — OpenSearch (1.0.0)

## References

- [CNA](https://fluidattacks.com/advisories/chick)
- [CNA](https://github.com/opensearch-project/OpenSearch/releases/tag/3.3.0)
- [CNA](https://github.com/opensearch-project/OpenSearch/releases/tag/2.19.4)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.51%
- **EPSS Percentile:** 41.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._