What’s Vulnerable › Vulnerabilities

CVE-2023-46672: Logstash Insertion of Sensitive Information into Log File

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-11-15 · updated 2026-06-17
• Weakness: CWE-532

Description

An issue was identified by Elastic whereby sensitive information is recorded in Logstash logs under specific circumstances. The prerequisites for the manifestation of this issue are: * Logstash is configured to log in JSON format https://www.elastic.co/guide/en/logstash/current/running-logstash-command-line.html , which is not the default logging format. * Sensitive data is stored in the Logstash keystore and referenced as a variable in Logstash configuration.

Affected products

• Elastic Logstash: from 8.10.0 before 8.11.1; 7.12.1 — fixed in 8.11.1

How to fix

Upgrade to a fixed version: Elastic Logstash 8.11.1. Check the vendor advisory for mitigations.

References

• https://discuss.elastic.co/t/logstash-8-11-1-security-update-esa-2023-26/347191
• https://security.netapp.com/advisory/ntap-20240125-0002/
• https://security.netapp.com/advisory/ntap-20240229-0001/
• https://www.elastic.co/community/security
• https://discuss.elastic.co/t/logstash-8-11-1-security-update-esa-2023-26/347191
• https://security.netapp.com/advisory/ntap-20240125-0002/
• https://security.netapp.com/advisory/ntap-20240229-0001/
• https://www.elastic.co/community/security

Get alerted when CVE-2023-46672 or the next vulnerability affects your stack