CVE-2015-1427Known exploitationPublic exploitNetwork attack vectorHinoki check available

Unauthenticated command execution via Groovy sandbox escape

Published Feb 17, 2015 · Updated Oct 22, 2025

Sandbox escape in Elastic Elasticsearch's Groovy engine allows remote attackers to execute shell commands via crafted search requests. In 1.3.0 through 1.3.7 and 1.4.0 through 1.4.2, the search API evaluates untrusted Groovy scripts whose sandbox permits java.lang.Math.class.forName to load restricted classes such as java.lang.Runtime. An accessible REST API and enabled dynamic Groovy scripting are required; commands run with the Elasticsearch Java process's privileges.

CVSS severity9.8
Critical
EPSS probability99.91%
Next 30 days · Nov 1, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Sandbox escape in Elastic Elasticsearch's Groovy engine allows remote attackers to execute shell commands via crafted search requests. In 1.3.0 through 1.3.7 and 1.4.0 through 1.4.2, the search API evaluates untrusted Groovy scripts whose sandbox permits java.lang.Math.class.forName to load restricted classes such as java.lang.Runtime. An accessible REST API and enabled dynamic Groovy scripting are required; commands run with the Elasticsearch Java process's privileges.

The record

CVE
CVE-2015-1427
Published
Feb 17, 2015
Updated
Oct 22, 2025
Vendor
Elastic
Product
Elasticsearch
Classifications
CWE-284, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 17, 2015CVE publishedPublication date reported by the CVE source.
  2. Oct 22, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Elastic · Elasticsearchversion=n/a

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8Rapid7CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsShadowserver observations through Sep 28, 2026. Gaps indicate unavailable data.
Sep 22, 2026Sep 28, 2026
View daily counts
Reporting dayUnique IPs
Sep 22, 20263
Sep 23, 20263
Sep 24, 20265
Sep 25, 20263
Sep 26, 20261
Sep 27, 20262
Sep 28, 20262
Latest reporting daySep 28, 2026
Latest daily unique IPs2
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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