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CVE-2014-4326 — Vulnerability in logstash — CVE Details

HIGH

Elasticsearch Logstash allows remote attackers to execute arbitrary commands

Published May 14, 2022Updated April 16, 2025Source: osv

Summary

Elasticsearch Logstash 1.0.14 through 1.4.x before 1.4.2 allows remote attackers to execute arbitrary commands via a crafted event in (1) `zabbix.rb` or (2) `nagios_nsca.rb` in `outputs/`.

Advisory Timeline

  • First published May 14, 2022 (1612 days ago).
  • Last revised April 16, 2025 — 1069 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Bundler
Update logstash to 1.4.2 or later
gem install logstash -v 1.4.2

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: rubygems (1).

PackageEcosystemAffectedFixed In
logstash
rubygems
All versions1.4.2

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-78
    OS Command InjectionMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
—
Confidentiality
—
Integrity
—
Availability
—

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U

References

Frequently Asked Questions

What is CVE-2014-4326?
Elasticsearch Logstash allows remote attackers to execute arbitrary commands This vulnerability has been assigned a severity rating of HIGH (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2014-4326?
CVE-2014-4326 affects logstash. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2014-4326 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-8qhq-rq4j-8prj

Related CVEs

  • CVE-2026-94462
    HIGH

    Spree: Broken Access Control in `PATCH /api/v3/store/carts/:id/associate` (IDOR)

  • CVE-2026-77601
    HIGH

    OpenC3 COSMOS: Authenticated OS command injection via the `pypi_url` setting

More RubyGems advisories

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