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Vulnerability record · CVE-2019-7620 · published 30 October 2019

CVE-2019-7620: Elastic logstash uncontrolled resource consumption vulnerability

Elastic · Logstash

Logstash versions before 7.4.1 and 6.8.4 contain a denial of service flaw in the Logstash Beats input plugin. An unauthenticated user who is able to connect to the port the Logstash beats input could send a specially crafted network packet that would cause Logstash to stop responding.

7.5 CVSS 3.1 High EPSS 2.1% · top 19.2% CWE-400 · Uncontrolled resource consumption
7.5CVSS 3.1 base score, v2 5.0
2.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

Logstash versions before 7.4.1 and 6.8.4 contain a denial of service flaw in the Logstash Beats input plugin. An unauthenticated user who is able to connect to the port the Logstash beats input could send a specially crafted network packet that would cause Logstash to stop responding.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://discuss.elastic.co/t/elastic-stack-6-8-4-security-update/204908 Vendor Advisory
https://discuss.elastic.co/t/elastic-stack-7-4-1-security-update/204909 Vendor Advisory
https://www.elastic.co/community/security Vendor Advisory
https://discuss.elastic.co/t/elastic-stack-6-8-4-security-update/204908 Vendor Advisory
https://discuss.elastic.co/t/elastic-stack-7-4-1-security-update/204909 Vendor Advisory
https://www.elastic.co/community/security Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-7620), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.