CVE-2018-17247

What it is

Elasticsearch Security versions 6.5.0 and 6.5.1 contain an XXE flaw in Machine Learning's find_file_structure API. If a policy allowing external network access has been added to Elasticsearch's Java Security Manager then an attacker could send a specially crafted request capable of leaking content of local files on the Elasticsearch node. This could allow a user to access information that they should not have access to.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure.

Exploit odds

1.4% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2018-12-20 22:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 01:45 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 1.4% in the next 30 days (EPSS).
• Severity: 5.9 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2018-12-20 22:29 UTC

Last modified

2026-06-17 01:45 UTC

Exploit probability

1.4% · EPSS, next 30 days

Weakness

CWE-611 · XML external entity

Record status

Modified

Affected

• Elastic Elasticsearch 6.5.0
• Elastic Elasticsearch 6.5.1

Attack profile CVSS 3.0 · 5.9

Attack vector

Network

Complexity

High

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2018-17247.md and follow it. Check whether this project is affected by CVE-2018-17247. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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