CVE-2014-3120The 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.
Updated under an hour ago ()
Does this affect you?
It affects elasticsearch. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Mar 25, 2022; federal agencies had to remediate by Apr 15, 2022. Treat that date as your deadline.
Do this next
Free account, 1 product
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.
- CVSS
- 8.1 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-284
- Known exploited
- Added to CISA KEV Mar 25, 2022; federal remediation due Apr 15, 2022Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 88.56% (percentile 100)
- Assigned by
- mitre
- NVD analysis
- Analyzed
- Record last updated
- Oct 22, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
elastic elasticsearch elastic:elasticsearch | before 1.2.0 | NVD |
References
- https://www.elastic.co/blog/logstash-1-4-3-releasedx-refsource-confirm, vendor-advisory
- http://www.exploit-db.com/exploits/33370exploit, x-refsource-exploit-db
- http://www.securityfocus.com/bid/67731vdb-entry, x-refsource-bid, exploit
- http://www.osvdb.org/106949vdb-entry, x-refsource-osvdb, broken-link
- http://bouk.co/blog/elasticsearch-rce/x-refsource-misc, exploit
- http://www.rapid7.com/db/modules/exploit/multi/elasticsearch/script_mvel_rcex-refsource-misc, exploit, third-party-advisory
- https://www.found.no/foundation/elasticsearch-security/#staying-safe-while-developing-with-elasticsearchx-refsource-misc, exploit
- https://www.elastic.co/community/security/x-refsource-confirm, vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-3120us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.