CVE-2015-5378

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-06-27 · updated 2026-06-17
Weakness: CWE-200

Description

Logstash 1.5.x before 1.5.3 and 1.4.x before 1.4.4 allows remote attackers to read communications between Logstash Forwarder agent and Logstash server.

Affected products

Elastic Logstash: 1.4.0, 1.4.1, 1.4.2
Elasticsearch Logstash: 1.4.3, 1.5.0, 1.5.1, 1.5.2

References

http://packetstormsecurity.com/files/132800/Logstash-1.5.2-SSL-TLS-FREAK.html
http://www.securityfocus.com/archive/1/536050/100/0/threaded
http://www.securityfocus.com/archive/1/536859/100/0/threaded
http://www.securityfocus.com/bid/76015
https://www.elastic.co/community/security
http://packetstormsecurity.com/files/132800/Logstash-1.5.2-SSL-TLS-FREAK.html
http://www.securityfocus.com/archive/1/536050/100/0/threaded
http://www.securityfocus.com/archive/1/536859/100/0/threaded
http://www.securityfocus.com/bid/76015
https://www.elastic.co/community/security

Get alerted when CVE-2015-5378 or the next vulnerability affects your stack