CVE-2025-9624

OpenSearch 3.2.0 - Nested Boolean/Disjunction asymmetric DoS

HIGH
7.5
CVSS Score
Published: November 25, 2025 at 07:43 PM UTC
Updated: October 18, 2026 at 08:10 PM UTC
2 products affected across 2 vendorsOpensearchOpenSearch

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Severity
HIGH7.5
Exploit prediction
EPSS 0.7%
SSVC
PoC

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 3.2.0.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.3.0
1.0.0 ≤ v < 2.19.43.0.0 ≤ v < 3.3.01.0.03.0.0
Affected range stops below 2.19.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.3.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-674

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