What is CVE-2017-14730?

CVE-2017-14730 is a high-severity vulnerability in Elasticsearch Logstash, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2017-09-25.

How severe is CVE-2017-14730?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Elasticsearch Logstash

CVE-2017-14730

The init script in the Gentoo app-admin/logstash-bin package before 5.5.3 and 5.6.x before 5.6.1 has "chown -R" calls for user-writable directory trees, which allows local users to gain privileges by leveraging access to a $LS_USER account for creation of a hard link.

Published 2017-09-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (25.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Elasticsearch Logstash — versions 5.0.0, 5.0.1, 5.0.2
Gentoo Linux

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

bugs.gentoo.org/628558 (Third Party Advisory)
gitweb.gentoo.org/repo/gentoo.git/commit/ (Third Party Advisory)
gitweb.gentoo.org/repo/gentoo.git/commit/ (Third Party Advisory)
github.com/gentoo/gentoo/pull/5665 (Third Party Advisory)

Frequently asked questions

What is CVE-2017-14730?: CVE-2017-14730 is a high-severity vulnerability in Elasticsearch Logstash, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2017-09-25.
How severe is CVE-2017-14730?: High severity. CVSS v3 base score is 7.8 out of 10.