What’s Vulnerable › Vulnerabilities

CVE-2023-49923: Enterprise Search Insertion of Sensitive Information into Log File

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-12-12 · updated 2026-06-17
• Weakness: CWE-532

Description

An issue was discovered by Elastic whereby the Documents API of App Search logged the raw contents of indexed documents at INFO log level. Depending on the contents of such documents, this could lead to the insertion of sensitive or private information in the App Search logs. Elastic has released 8.11.2 and 7.17.16 that resolves this issue by changing the log level at which these are logged to DEBUG, which is disabled by default.

Affected products

• Elastic Enterprise Search: from 7.0.0 before 7.17.16; from 8.0.0 before 8.11.2 — fixed in 7.17.16, 8.11.2

How to fix

Upgrade to a fixed version: Elastic Enterprise Search 7.17.16, 8.11.2. Check the vendor advisory for mitigations.

References

• https://discuss.elastic.co/t/enterprise-search-8-11-2-7-17-16-security-update-esa-2023-31/349181
• https://www.elastic.co/community/security
• https://discuss.elastic.co/t/enterprise-search-8-11-2-7-17-16-security-update-esa-2023-31/349181
• https://www.elastic.co/community/security

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