The default configuration in Elasticsearch before 1.2 enables dynamic scripting, which allows remote attackers to execute arbitrary MVEL expressions and Java code via the source parameter to _search. NOTE: this only violates the vendor's intended security policy if the user does not run Elasticsearch in its own independent virtual machine.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Elastic Elasticsearch | — | Upgrade Elastic Elasticsearch to the latest version | Apr 23, 2026 | Jul 28, 2014 |
| Freebsd | — | Upgrade logstashUpgrade elasticsearch | Dec 10, 2025 | Jun 26, 2015 |
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