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Vulnerability record · CVE-2025-9624 · published 25 November 2025

CVE-2025-9624: Amazon opensearch vulnerability

Amazon · Opensearch

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.

8.3 CVSS 4.0 High EPSS 0.51% · top 59.2% CWE-674 · CWE-674
8.3CVSS 4.0 base score
0.51%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 1 tagged exploit
17 Jun 2026Last modified by NVD

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://fluidattacks.com/advisories/chick ExploitThird Party Advisory
https://github.com/opensearch-project/OpenSearch/releases/tag/2.19.4
https://github.com/opensearch-project/OpenSearch/releases/tag/3.3.0

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-9624), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.