CVE-2025-9624
OpenSearch is vulnerable to DoS via complex query_string inputs
EPSS 0.01%
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 2.19.4 and versions 3.0.0 through 3.2.0.
How to fix CVE-2025-9624
To remediate CVE-2025-9624, upgrade the affected package to a fixed version below.
- Maven/org.opensearch:opensearch-common—upgrade to 3.3.0 or later
Is CVE-2025-9624 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 3.0.0, < 3.3.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | 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 |