critical Known exploitedREV. 01

CVE-2015-1427Elasticsearch — Escaping the Groovy Scripting Sandbox

The Groovy scripting engine in Elasticsearch lets a remote attacker step outside the restrictions meant to contain scripts and run shell commands on the node.

YOUR NEXT MOVE

Upgrade Elasticsearch past 1.3.8 or 1.4.3, and keep dynamic scripting off on anything reachable.

Read the risk

THE VITAL STATS
CVSS score
9.8/ 10
CVSS v3.1
EPSS probability
100%
Likelihood of exploitation
Attack complexity
Low
Conditions needed to exploit
Known exploited
Yes — CISA KEV
CVE published
2015-02-17
Added to KEV
2022-03-25
Exploit published
Yes
Confidence
medium
Kill chain
execution
MITRE ATT&CK
T1059
Severity
critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attacker needsNetwork access to the Elasticsearch port

Behind the card

5 REFERENCES
Field-level provenanceTRACE THE SOURCES +

Which source supports each field, when it was retrieved, and who extracted it.

FieldsSourceRetrievedExtractorConfidence
cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_atnvd.nist.gov2026-08-07scrty-crds-pipeline/0.1high
exploitation.known_exploited, exploitation.kev_addedcisa.gov2026-08-07scrty-crds-pipeline/0.1high
epssapi.first.org2026-08-07scrty-crds-pipeline/0.1high
title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisitesnvd.nist.gov2026-08-07claude-codehigh

Printing history

THE RECORD
  1. r1Initial base card

First printing. This card has not been reprinted since publication.

crds:cve-2015-1427 · CRDS 0.1 · Issued 2026-08-07