CVE-2015-5619

medium
Published 2015-08-20 ยท Modified 2026-05-13
CVSS v3
5.9
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
5.9

Description

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.

Predictions

Exploit likelihood
69%
Patch ETA
โ€”

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Package impact

EcosystemPackageVulnerableFixed
ruby RubyGemslogstash-core<~> 1.4.5~> 1.4.5

Application impact

VendorProductVersionsFixed
elasticlogstash1.4.0
elasticlogstash1.4.1
elasticlogstash1.4.2
elasticsearchlogstash1.4.3
elasticsearchlogstash1.4.4
elasticsearchlogstash1.5.0
elasticsearchlogstash1.5.1
elasticsearchlogstash1.5.2
elasticsearchlogstash1.5.3

References

CWEs

CWE-295

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.