CVE-2015-5619: n/a vulnerability

CVE-2015-5619: Logstash 1.4.x before 1.4.5 and 1.5.x before 1.5.4 with Lumberjack output or the Logstash forwarder does no...

Logstash 1.4.x before 1.4.5 and 1.5.x before 1.5.4 with Lumberjack output or the Logstash forwarder does not validate SSL/TLS certificates from the Logstash server, which might allow attackers to obtain sensitive information via a man-in-the-middle attack.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 06:59 UTC (UTC+00:00)

Security readout for executives and security teams

Older Logstash deployments could trust the wrong TLS endpoint when using Lumberjack output or Logstash Forwarder. A network-positioned attacker could impersonate the Logstash server and obtain sensitive log data in transit. This mainly affects legacy deployments that still run the vulnerable Logstash branches. Exposure is likely limited to old Logstash 1.4.x or 1.5.x environments using Lumberjack output or Logstash Forwarder over TLS. Modern Elastic Stack deployments may not be affected, but legacy logging pipelines often persist unnoticed. Treat as a legacy exposure cleanup item unless the affected pipeline carries sensitive data or crosses untrusted networks. Prioritize remediation where logs include credentials, customer data, security events, or compliance-relevant records. Mitigation focus: Upgrade Logstash 1.4.x to 1.4.5 or later.; Upgrade Logstash 1.5.x to 1.5.4 or later.; Review Elastic guidance for any remaining legacy configuration requirements..

Prepared: Jun 12, 2026, 21:41 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Aug 9, 2017, 16:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://www.elastic.co/blog/logstash-1-5-4-and-1-4-5-releasedCVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

CWE details

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