What’s Vulnerable › Vulnerabilities

CVE-2016-1000222

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-06-16 · updated 2026-06-17
• Weakness: CWE-88

Description

Logstash prior to version 2.1.2, the CSV output can be attacked via engineered input that will create malicious formulas in the CSV data.

Affected products

• Elastic Logstash: through 2.1.1

References

• https://www.elastic.co/community/security
• https://www.elastic.co/community/security

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