Uncontrolled Recursion in Elasticsearch Leading to Denial of Service (CVE-2026-72638)
Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Input Data Manipulation (CAPEC-153). An authenticated user holding only low-privileged index creation permissions can submit a single request containing a specially crafted, malformed custom analysis definition that is resolved recursively without a cycle or depth check, exhausting the thread stack and terminating the affected node.
Uncontrolled Recursion in Elasticsearch Leading to Denial of Service (CVE-2026-72638)
Description
Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Input Data Manipulation (CAPEC-153). An authenticated user holding only low-privileged index creation permissions can submit a single request containing a specially crafted, malformed custom analysis definition that is resolved recursively without a cycle or depth check, exhausting the thread stack and terminating the affected node.
Affected software
pkg:bitnami/elasticsearchRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- BIT-elasticsearch-2026-72638
- Osv Schema Version
- 1.6.2
- Aliases
- ["CVE-2026-72638"]
- Ecosystems
- ["Bitnami"]
- Database Specific Severity
- Medium
- Cvss Version
- null
Threat ID: 6a85b4b2acd9273b492514c9
Added to database: 08/19/2026, 13:50:42 UTC
Last updated: 08/19/2026, 13:50:42 UTC
Views: 1
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